论文信息 - Unmasking the hidden NGTS-3Ab: a hot Jupiter in an unresolved binary system - 字舞流文

Unmasking the hidden NGTS-3Ab: a hot Jupiter in an unresolved binary system

We present the discovery of NGTS-3Ab, a hot Jupiter found transiting the primary star of an unresolved binary system. We develop a joint analysis of multi-colour photometry, centroids, radial velocity (RV) cross-correlation function (CCF) profiles and their bisector inverse slopes (BIS) to disentangle this three-body system. Data from the Next Generation Transit Survey (NGTS), SPECULOOS and HARPS are analysed and modelled with our new blendfitter software. We find that the binary consists of NGTS-3A (G6V-dwarf) and NGTS-3B (K1V-dwarf) at 5 arcsec) and are prone to contamination by blended objects. With TESS on the horizon, it is pivotal for the candidate vetting to incorporate all available follow-up information from multi-colour photometry and RV CCF profiles.

Edward Gillen | Anders Erikson | Samantha J. Thompson | Artem Burdanov | Juan Cabrera | David J. Armstrong | Didier Queloz | Don Pollacco | Richard G. West | Peter J. Wheatley | Neale P. Gibson | Laetitia Delrez | Yaseen Almleaky | Elsa Ducrot | Catriona Murray | Sandrine Sohy | Katja Poppenhaeger | Maximilian N. Gunther | Francois Bouchy | David J Armstrong | Heike Rauer | Stephane Udry | Emmanuel Jehin | Tom Louden | James S. Jenkins | Benjamin F. Cooke | Daniel Bayliss | Christopher A. Watson | D. Bayliss | F. Bouchy | S. Udry | S. Sohy | A. Burdanov | B. Gaensicke | E. Jehin | C. Watson | M. Gillon | L. Delrez | Y. Almleaky | D. Queloz | D. Pollacco | H. Rauer | A. Erikson | P. Eigmueller | M. Burleigh | R. West | E. Gillen | M. Gunther | J. McCormac | Alexis M. S. Smith | S. Casewell | M. Goad | J. Jenkins | T. Louden | K. Poppenhaeger | L. Raynard | P. Wheatley | J. Cabrera | B. Smalley | N. Gibson | E. Ducrot | C. Murray | S. Thompson | B. Cooke | M. Moyano | S. Csizmadia | Michael Gillon | Maximiliano Moyano | James McCormac | Barry Smalley | Matthew Burleigh | Sarah L. Casewell | Szillard Csizmadia | Philipp Eigmueller | Boris T. Gaensicke | Michael R. Goad | Liam Raynard

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