Target-of-opportunity Observations of Gravitational-wave Events with Vera C. Rubin Observatory

The discovery of the electromagnetic counterpart to the binary neutron star (NS) merger GW170817 has opened the era of gravitational-wave multimessenger astronomy. Rapid identification of the optical/infrared kilonova enabled a precise localization of the source, which paved the way to deep multiwavelength follow-up and its myriad of related science results. Fully exploiting this new territory of exploration requires the acquisition of electromagnetic data from samples of NS mergers and other gravitational-wave sources. After GW170817, the frontier is now to map the diversity of kilonova properties and provide more stringent constraints on the Hubble constant, and enable new tests of fundamental physics. The Vera C. Rubin Observatory’s Legacy Survey of Space and Time can play a key role in this field in the 2020s, when an improved network of gravitational-wave detectors is expected to reach a sensitivity that will enable the discovery of a high rate of merger events involving NSs (∼tens per year) out to distances of several hundred megaparsecs. We design comprehensive target-of-opportunity observing strategies for follow-up of gravitational-wave triggers that will make the Rubin Observatory the premier instrument for discovery and early characterization of NS and other compact-object mergers, and yet unknown classes of gravitational-wave events.

[1]  K. Wiersema,et al.  The Gravitational-wave Optical Transient Observer (GOTO): Prototype performance and prospects for transient science , 2021, Monthly Notices of the Royal Astronomical Society.

[2]  I. Andreoni,et al.  Give Me a Few Hours: Exploring Short Timescales in Rubin Observatory Cadence Simulations , 2021, The Astrophysical Journal Supplement Series.

[3]  Maria E. S. Pereira,et al.  SOAR/Goodman Spectroscopic Assessment of Candidate Counterparts of the LIGO/Virgo Event GW190814 , 2021, The Astrophysical Journal.

[4]  L. Singer,et al.  Data-driven Expectations for Electromagnetic Counterpart Searches Based on LIGO/Virgo Public Alerts , 2021, The Astrophysical Journal.

[5]  Chris L. Fryer,et al.  Kilonova Detectability with Wide-field Instruments , 2021, The Astrophysical Journal.

[6]  A. Lien,et al.  Constraints on the Electromagnetic Counterpart of the Neutron-star–Black-hole Merger GW200115 , 2021, The Astrophysical Journal Letters.

[7]  K. Hotokezaka,et al.  A comprehensive search for the radio counterpart of GW190814 with the Australian Square Kilometre Array Pathfinder , 2021, Monthly Notices of the Royal Astronomical Society.

[8]  S. O. Physics,et al.  Are Interactions with Neutron Star Merger Winds Shaping the Jets? , 2021, 2109.00814.

[9]  P. Schmidt,et al.  Constraints on compact binary merger evolution from spin-orbit misalignment in gravitational-wave observations , 2021, 2108.10184.

[10]  T. Sakamoto,et al.  Swift/UVOT follow-up of gravitational wave alerts in the O3 era , 2021, Monthly Notices of the Royal Astronomical Society.

[11]  M. J. Williams,et al.  Observation of Gravitational Waves from Two Neutron Star–Black Hole Coalescences , 2021 .

[12]  N. Butler,et al.  DDOTI observations of gravitational-wave sources discovered in O3 , 2021, Monthly Notices of the Royal Astronomical Society.

[13]  David O. Jones,et al.  The Gravity Collective: A Search for the Electromagnetic Counterpart to the Neutron Star–Black Hole Merger GW190814 , 2021, The Astrophysical Journal.

[14]  L. Singer,et al.  Optimizing Cadences with Realistic Light-curve Filtering for Serendipitous Kilonova Discovery with Vera Rubin Observatory , 2021, The Astrophysical Journal Supplement Series.

[15]  Leo Singer.  Data-driven expectations for electromagnetic counterpart searches based on LIGO/Virgo public alerts: O5 simulations , 2021 .

[16]  A. Mahabal,et al.  Fast-transient Searches in Real Time with ZTFReST: Identification of Three Optically Discovered Gamma-Ray Burst Afterglows and New Constraints on the Kilonova Rate , 2021, The Astrophysical Journal.

[17]  M. Fishbach,et al.  Do LIGO/Virgo Black Hole Mergers Produce AGN Flares? The Case of GW190521 and Prospects for Reaching a Confident Association , 2021, 2103.16069.

[18]  P. Vreeswijk,et al.  GW190814 follow-up with the optical telescope MeerLICHT , 2021, Astronomy & Astrophysics.

[19]  P. Cowperthwaite,et al.  A Late-time Galaxy-targeted Search for the Radio Counterpart of GW190814 , 2021, The Astrophysical Journal.

[20]  S. Scott,et al.  SkyMapper optical follow-up of gravitational wave triggers: Alert science data pipeline and LIGO/Virgo O3 run , 2021, Publications of the Astronomical Society of Australia.

[21]  P. Schmidt,et al.  Tight multimessenger constraints on the neutron star equation of state from GW170817 and a forward model for kilonova light-curve synthesis , 2021, Monthly Notices of the Royal Astronomical Society.

[22]  R. Chornock,et al.  First Multimessenger Observations of a Neutron Star Merger , 2020, Annual Review of Astronomy and Astrophysics.

[23]  D. Frail,et al.  The JAGWAR Prowls LIGO/Virgo O3 Paper I: Radio Search of a Possible Multimessenger Counterpart of the Binary Black Hole Merger Candidate S191216ap , 2020, The Astrophysical Journal.

[24]  M. J. Williams,et al.  Population Properties of Compact Objects from the Second LIGO–Virgo Gravitational-Wave Transient Catalog , 2020, 2010.14533.

[25]  B. Giacomazzo,et al.  Accretion-to-jet energy conversion efficiency in GW170817 , 2020, Astronomy & Astrophysics.

[26]  A. Mahabal,et al.  A tidal disruption event coincident with a high-energy neutrino , 2020, Nature Astronomy.

[27]  M. Coughlin,et al.  Multimessenger constraints on the neutron-star equation of state and the Hubble constant , 2020, Science.

[28]  S. O. Physics,et al.  Can jets make the radioactively powered emission from neutron star mergers bluer? , 2020, 2010.08989.

[29]  Mathematics,et al.  Swift-XRT follow-up of gravitational wave triggers during the third aLIGO/Virgo observing run , 2020, Monthly Notices of the Royal Astronomical Society.

[30]  B. A. Boom,et al.  Prospects for observing and localizing gravitational-wave transients with Advanced LIGO, Advanced Virgo and KAGRA , 2020, Living reviews in relativity.

[31]  M. Graham,et al.  Optical follow-up of the neutron star–black hole mergers S200105ae and S200115j , 2020, Nature Astronomy.

[32]  D. Giannios,et al.  Multimessenger Parameter Estimation of GW170817: From Jet Structure to the Hubble Constant , 2020, 2009.04427.

[33]  N. Christensen,et al.  Measuring the Hubble constant with a sample of kilonovae , 2020, Nature Communications.

[34]  Australian National University,et al.  A DESGW Search for the Electromagnetic Counterpart to the LIGO/Virgo Gravitational-wave Binary Neutron Star Merger Candidate S190510g , 2020, The Astrophysical Journal.

[35]  P. K. Panda,et al.  GW190814: Gravitational Waves from the Coalescence of a 23 M$_\odot$ Black Hole with a 2.6 M$_\odot$ Compact Object , 2020, 2006.12611.

[36]  Adam A. Miller,et al.  Kilonova Luminosity Function Constraints Based on Zwicky Transient Facility Searches for 13 Neutron Star Merger Triggers during O3 , 2020, The Astrophysical Journal.

[37]  D. Gerdes,et al.  Constraints on the Physical Properties of GW190814 through Simulations Based on DECam Follow-up Observations by the Dark Energy Survey , 2020, The Astrophysical Journal.

[38]  A. Goobar,et al.  Detectability of kilonovae in optical surveys: post-mortem examination of the LVC O3 run follow-up , 2020, 2004.06137.

[39]  D. A. Kann,et al.  GRANDMA observations of advanced LIGO’s and advanced Virgo’s third observational campaign , 2020, Monthly Notices of the Royal Astronomical Society.

[40]  R. Kotak,et al.  Searching for electromagnetic counterparts to gravitational-wave merger events with the prototype Gravitational-Wave Optical Transient Observer (GOTO-4) , 2020, Monthly Notices of the Royal Astronomical Society.

[41]  J. Ruan,et al.  A Deep CFHT Optical Search for a Counterpart to the Possible Neutron Star–Black Hole Merger GW190814 , 2020, The Astrophysical Journal.

[42]  S. Bernuzzi,et al.  The Dynamics of Binary Neutron Star Mergers and GW170817 , 2020, 2002.03863.

[43]  M. L. Pumo,et al.  Observational constraints on the optical and near-infrared emission from the neutron star–black hole binary merger candidate S190814bv , 2020, Astronomy & Astrophysics.

[44]  William H. Lee,et al.  Limits on the electromagnetic counterpart to S190814bv , 2020, Monthly Notices of the Royal Astronomical Society.

[45]  P. K. Panda,et al.  GW190425: Observation of a Compact Binary Coalescence with Total Mass ∼ 3.4 M⊙ , 2020 .

[46]  E. Nakar.  The electromagnetic counterparts of compact binary mergers , 2019, Physics Reports.

[47]  J. Newman,et al.  GROWTH on S190814bv: Deep Synoptic Limits on the Optical/Near-infrared Counterpart to a Neutron Star–Black Hole Merger , 2019, The Astrophysical Journal.

[48]  Y. N. Liu,et al.  Multi-messenger Observations of a Binary Neutron Star Merger , 2019, Proceedings of Multifrequency Behaviour of High Energy Cosmic Sources - XIII — PoS(MULTIF2019).

[49]  K. Hotokezaka,et al.  Radioactive Heating Rate of r-process Elements and Macronova Light Curve , 2019, The Astrophysical Journal.

[50]  O. Salafia,et al.  Electromagnetic counterparts of black hole–neutron star mergers: dependence on the neutron star properties , 2019, The European Physical Journal A.

[51]  N. Masetti,et al.  A comparison between short GRB afterglows and kilonova AT2017gfo: shedding light on kilonovae properties , 2019, Monthly Notices of the Royal Astronomical Society.

[52]  J.Lee,et al.  THE DARK ENERGY CAMERA , 2004, The Dark Energy Survey.

[53]  OUP accepted manuscript , 2020, Monthly Notices of the Royal Astronomical Society.

[54]  J. Newman,et al.  An ASKAP Search for a Radio Counterpart to the First High-significance Neutron Star–Black Hole Merger LIGO/Virgo S190814bv , 2019, The Astrophysical Journal.

[55]  S. Nissanke,et al.  Implications of the search for optical counterparts during the first six months of the Advanced LIGO’s and Advanced Virgo’s third observing run: possible limits on the ejecta mass and binary properties , 2019, Monthly Notices of the Royal Astronomical Society.

[56]  J. Fynbo,et al.  Identification of strontium in the merger of two neutron stars , 2019, Nature.

[57]  P. Cowperthwaite,et al.  Two Years of Nonthermal Emission from the Binary Neutron Star Merger GW170817: Rapid Fading of the Jet Afterglow and First Constraints on the Kilonova Fastest Ejecta , 2019, The Astrophysical Journal.

[58]  P. Cowperthwaite,et al.  A Galaxy-targeted Search for the Optical Counterpart of the Candidate NS–BH Merger S190814bv with Magellan , 2019, The Astrophysical Journal.

[59]  Eugene Serabyn,et al.  GROWTH on S190425z: Searching Thousands of Square Degrees to Identify an Optical or Infrared Counterpart to a Binary Neutron Star Merger with the Zwicky Transient Facility and Palomar Gattini-IR , 2019, The Astrophysical Journal.

[60]  Paul S. Smith,et al.  Searches after Gravitational Waves Using ARizona Observatories (SAGUARO): System Overview and First Results from Advanced LIGO/Virgo’s Third Observing Run , 2019, The Astrophysical Journal.

[61]  M. Bulla,et al.  possis: predicting spectra, light curves, and polarization for multidimensional models of supernovae and kilonovae , 2019, Monthly Notices of the Royal Astronomical Society.

[62]  A. Mahabal,et al.  GROWTH on S190510g: DECam Observation Planning and Follow-up of a Distant Binary Neutron Star Merger Candidate , 2019, The Astrophysical Journal.

[63]  M. Graham,et al.  GROWTH on S190426c: Real-time Search for a Counterpart to the Probable Neutron Star–Black Hole Merger using an Automated Difference Imaging Pipeline for DECam , 2019, The Astrophysical Journal.

[64]  D. A. Kann,et al.  Short GRB 160821B: A Reverse Shock, a Refreshed Shock, and a Well-sampled Kilonova , 2019, The Astrophysical Journal.

[65]  P. Cowperthwaite,et al.  Follow-up of the Neutron Star Bearing Gravitational-wave Candidate Events S190425z and S190426c with MMT and SOAR , 2019, The Astrophysical Journal.

[66]  S. Ascenzi,et al.  On-axis view of GRB 170817A , 2019, Astronomy & Astrophysics.

[67]  A. Lien,et al.  The afterglow and kilonova of the short GRB 160821B , 2019, Monthly Notices of the Royal Astronomical Society.

[68]  Richard Walters,et al.  The Zwicky Transient Facility: Surveys and Scheduler , 2019, Publications of the Astronomical Society of the Pacific.

[69]  O. Salafia,et al.  Light-curve models of black hole – neutron star mergers: steps towards a multi-messenger parameter estimation , 2019, Astronomy & Astrophysics.

[70]  Umaa Rebbapragada,et al.  The Zwicky Transient Facility: Science Objectives , 2019, Publications of the Astronomical Society of the Pacific.

[71]  R. Biswas,et al.  Serendipitous discoveries of kilonovae in the LSST main survey: maximizing detections of sub-threshold gravitational wave events , 2018, Monthly Notices of the Royal Astronomical Society.

[72]  E. Ofek,et al.  Spitzer Mid-Infrared Detections of Neutron Star Merger GW170817 Suggests Synthesis of the Heaviest Elements , 2018, Monthly Notices of the Royal Astronomical Society: Letters.

[73]  B. Metzger,et al.  Multimessenger Bayesian parameter inference of a binary neutron star merger , 2018, Monthly Notices of the Royal Astronomical Society: Letters.

[74]  L. Singer,et al.  A Strategy for LSST to Unveil a Population of Kilonovae without Gravitational-wave Triggers , 2018, Publications of the Astronomical Society of the Pacific.

[75]  I. Andreoni,et al.  Presto-Color: A Photometric Survey Cadence for Explosive Physics and Fast Transients , 2018, Publications of the Astronomical Society of the Pacific.

[76]  Chris L. Fryer,et al.  A luminosity distribution for kilonovae based on short gamma-ray burst afterglows , 2018, Monthly Notices of the Royal Astronomical Society.

[77]  P. Cowperthwaite,et al.  LSST Target-of-opportunity Observations of Gravitational-wave Events: Essential and Efficient , 2018, The Astrophysical Journal.

[78]  R. Xu,et al.  Strangeons constitute bulk strong matter: Test using GW 170817 , 2018, The European Physical Journal A.

[79]  F. Ohme,et al.  Constraining the Neutron Star Radius with Joint Gravitational-wave and Short Gamma-Ray Burst Observations of Neutron Star–Black Hole Coalescing Binaries , 2018, The Astrophysical Journal.

[80]  A. Melandri,et al.  Compact radio emission indicates a structured jet was produced by a binary neutron star merger , 2018, Science.

[81]  Kento Masuda,et al.  A Hubble constant measurement from superluminal motion of the jet in GW170817 , 2018, Nature Astronomy.

[82]  B. Metzger,et al.  Constraining Stellar-mass Black Hole Mergers in AGN Disks Detectable with LIGO , 2018, The Astrophysical Journal.

[83]  A. T. Deller,et al.  Superluminal motion of a relativistic jet in the neutron-star merger GW170817 , 2018, Nature.

[84]  S. Smartt,et al.  Constraints on the neutron star equation of state from AT2017gfo using radiative transfer simulations , 2018, Monthly Notices of the Royal Astronomical Society.

[85]  Iair Arcavi,et al.  The First Hours of the GW170817 Kilonova and the Importance of Early Optical and Ultraviolet Observations for Constraining Emission Models , 2018, 1802.02164.

[86]  B. Stalder,et al.  ATLAS: A High-cadence All-sky Survey System , 2018, 1802.00879.

[87]  G. Lamb,et al.  Transient survey rates for orphan afterglows from compact merger jets , 2017, 1712.00418.

[88]  K. Wiersema,et al.  The Diversity of Kilonova Emission in Short Gamma-Ray Bursts , 2017, The Astrophysical Journal.

[89]  Tsvi Piran,et al.  A cocoon shock breakout as the origin of the γ-ray emission in GW170817 , 2017, Monthly Notices of the Royal Astronomical Society.

[90]  J. Sollerman,et al.  The first direct double neutron star merger detection: Implications for cosmic nucleosynthesis , 2017, Astronomy & Astrophysics.

[91]  A. Abbott.  Hungary rewards highly cited scientists with bonus grants , 2017, Nature.

[92]  Sebastiano Bernuzzi,et al.  GW170817: Joint Constraint on the Neutron Star Equation of State from Multimessenger Observations , 2017, 1711.03647.

[93]  P. Cowperthwaite,et al.  The Combined Ultraviolet, Optical, and Near-infrared Light Curves of the Kilonova Associated with the Binary Neutron Star Merger GW170817: Unified Data Set, Analytic Models, and Physical Implications , 2017, 1710.11576.

[94]  D. Gerdes,et al.  Evidence for Dynamically Driven Formation of the GW170817 Neutron Star Binary in NGC 4993 , 2017, 1710.06748.

[95]  Hans-Thomas Janka,et al.  Neutron-star Radius Constraints from GW170817 and Future Detections , 2017, 1710.06843.

[96]  C. Guidorzi,et al.  Improved Constraints on H0 from a Combined Analysis of Gravitational-wave and Electromagnetic Emission from GW170817 , 2017, 1710.06426.

[97]  Dovi Poznanski,et al.  Optical emission from a kilonova following a gravitational-wave-detected neutron-star merger , 2017, Nature.

[98]  P. Schipani,et al.  Spectroscopic identification of r-process nucleosynthesis in a double neutron-star merger , 2017, Nature.

[99]  J. Prochaska,et al.  Swope Supernova Survey 2017a (SSS17a), the optical counterpart to a gravitational wave source , 2017, Science.

[100]  Jr.,et al.  The Electromagnetic Counterpart of the Binary Neutron Star Merger LIGO/Virgo GW170817. II. UV, Optical, and Near-infrared Light Curves and Comparison to Kilonova Models , 2017, 1710.05840.

[101]  M. M. Kasliwal,et al.  A radio counterpart to a neutron star merger , 2017, Science.

[102]  Larry Denneau,et al.  A kilonova as the electromagnetic counterpart to a gravitational-wave source , 2017, Nature.

[103]  C. Tao,et al.  Follow Up of GW170817 and Its Electromagnetic Counterpart by Australian-Led Observing Programmes , 2017, Publications of the Astronomical Society of Australia.

[104]  Chris L. Fryer,et al.  Swift and NuSTAR observations of GW170817: Detection of a blue kilonova , 2017, Science.

[105]  J. Prieto,et al.  Light curves of the neutron star merger GW170817/SSS17a: Implications for r-process nucleosynthesis , 2017, Science.

[106]  A. Rest,et al.  The Electromagnetic Counterpart of the Binary Neutron Star Merger LIGO/Virgo GW170817. IV. Detection of Near-infrared Signatures of r-process Nucleosynthesis with Gemini-South , 2017, 1710.05454.

[107]  David Blair,et al.  Gravitational Waves and Gamma-rays from a Binary Neutron Star Merger: GW170817 and GRB 170817A , 2017, 1710.05834.

[108]  M. Serra-Ricart,et al.  MASTER Optical Detection of the First LIGO/Virgo Neutron Star Binary Merger GW170817 , 2017, 1710.05461.

[109]  B. Metzger,et al.  Origin of the heavy elements in binary neutron-star mergers from a gravitational-wave event , 2017, Nature.

[110]  Juna A. Kollmeier,et al.  Evidence for Cocoon Emission from the Early Light Curve of SSS17a , 2017, 1710.05822.

[111]  T. Sakamoto,et al.  The X-ray counterpart to the gravitational-wave event GW170817 , 2017, Nature.

[112]  B. Metzger,et al.  Constraining the Maximum Mass of Neutron Stars from Multi-messenger Observations of GW170817 , 2017, 1710.05938.

[113]  Andrew J. Levan,et al.  The Distance to NGC 4993: The Host Galaxy of the Gravitational-wave Event GW170817 , 2017, 1710.05856.

[114]  Saurabh W. Jha,et al.  The Discovery of the Electromagnetic Counterpart of GW170817: Kilonova AT 2017gfo/DLT17ck , 2017, 1710.05854.

[115]  A. Lien,et al.  The Environment of the Binary Neutron Star Merger GW170817 , 2017, 1710.05444.

[116]  D. Gerdes,et al.  How Many Kilonovae Can Be Found in Past, Present, and Future Survey Data Sets? , 2017, 1710.05845.

[117]  K. Ulaczyk,et al.  The Emergence of a Lanthanide-Rich Kilonova Following the Merger of Two Neutron Stars , 2017, 1710.05455.

[118]  D. Frail,et al.  Illuminating gravitational waves: A concordant picture of photons from a neutron star merger , 2017, Science.

[119]  J. Prochaska,et al.  Electromagnetic evidence that SSS17a is the result of a binary neutron star merger , 2017, Science.

[120]  J. Prochaska,et al.  The Old Host-galaxy Environment of SSS17a, the First Electromagnetic Counterpart to a Gravitational-wave Source , 2017, 1710.05439.

[121]  C. Guidorzi,et al.  The Electromagnetic Counterpart of the Binary Neutron Star Merger LIGO/Virgo GW170817. VI. Radio Constraints on a Relativistic Jet and Predictions for Late-time Emission from the Kilonova Ejecta , 2017, 1710.05457.

[122]  C. Guidorzi,et al.  The Electromagnetic Counterpart of the Binary Neutron Star Merger LIGO/Virgo GW170817. V. Rising X-Ray Emission from an Off-axis Jet , 2017, 1710.05431.

[123]  R. Nichol,et al.  The Electromagnetic Counterpart of the Binary Neutron Star Merger LIGO/Virgo GW170817. I. Dark Energy Camera Discovery of the Optical Counterpart , 2017, 1710.05459.

[124]  C. A. Wilson-Hodge,et al.  An Ordinary Short Gamma-Ray Burst with Extraordinary Implications: Fermi-GBM Detection of GRB 170817A , 2017, 1710.05446.

[125]  A. Rest,et al.  An Empirical Study of Contamination in Deep, Rapid, and Wide-field Optical Follow-up of Gravitational Wave Events , 2017, 1710.02144.

[126]  A. King,et al.  Electromagnetic Signals Following Stellar-mass Black Hole Mergers , 2017, 1703.07794.

[127]  B. Metzger,et al.  Assisted inspirals of stellar mass black holes embedded in AGN discs: solving the ‘final au problem’ , 2016, 1602.04226.

[128]  J. Sollerman,et al.  Detectability of compact binary merger macronovae , 2016, 1611.09822.

[129]  M. Coughlin,et al.  Maximizing the probability of detecting an electromagnetic counterpart of gravitational-wave events , 2016, 1604.05205.

[130]  A. Gomboc,et al.  Unveiling the population of orphan γ -ray bursts , 2015, 1504.02096.

[131]  Rodrigo Fernandez,et al.  Kilonova light curves from the disc wind outflows of compact object mergers , 2014, 1411.3726.

[132]  B. Metzger,et al.  Neutron-powered precursors of kilonovae , 2014, 1409.0544.

[133]  Andrew J. Connolly,et al.  The LSST metrics analysis framework (MAF) , 2014, Astronomical Telescopes and Instrumentation.

[134]  Prasanth H. Nair,et al.  Astropy: A community Python package for astronomy , 2013, 1307.6212.

[135]  P. Murdin.  MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY , 2005 .

[136]  Bohdan Paczy'nski,et al.  Transient Events from Neutron Star Mergers , 1998, astro-ph/9807272.