| Title | Photometric and spectroscopic evolution of the interacting transient AT 2016jbu(Gaia16cfr) |
| Authors | Brennan, S. J. Fraser, M. Johansson, J. Pastorello, A. Kotak, R. Stevance, H. F. Chen, T-W Eldridge, J. J. Bose, S. Brown, P. J. Callis, E. Cartier, R. Dennefeld, M. Dong, Subo Duffy, P. Elias-Rosa, N. Hosseinzadeh, G. Hsiao, E. Kuncarayakti, H. Martin-Carrillo, A. Monard, B. Nyholm, A. Pignata, G. Sand, D. Shappee, B. J. Smartt, S. J. Tucker, B. E. Wyrzykowski, L. Abbot, H. Benetti, S. Bento, J. Blondin, S. Chen, Ping Delgado, A. Galbany, L. Gromadzki, M. Gutierrez, C. P. Hanlon, L. Harrison, D. L. Hiramatsu, D. Hodgkin, S. T. Holoien, T. W-S Howell, D. A. Inserra, C. Kankare, E. Kozlowski, S. Muller-Bravo, T. E. Maguire, K. McCully, C. Meintjes, P. Morrell, N. Nicholl, M. O'Neill, D. Pietrukowicz, P. Poleski, R. Prieto, J. L. Rau, A. Reichart, D. E. Schweyer, T. Shahbandeh, M. Skowron, J. Sollerman, J. Soszynski, I Stritzinger, M. D. Szymanski, M. Tartaglia, L. Udalski, A. Ulaczyk, K. Young, D. R. van Leeuwen, M. van Soelen, B. |
| Affiliation | Univ Coll Dublin, Sch Phys, OBrien Ctr Sci North, Dublin 4, Ireland Stockholm Univ, Dept Phys, Oskar Klein Ctr, AlbaNova, SE-10691 Stockholm, Sweden Osserv Astron Padova, INAF, Vicolo Osservatorio 5, I-35122 Padua, Italy Univ Turku, Dept Phys & Astron, FI-20014 Turku, Finland Univ Auckland, Dept Phys, Private Bag 92019, Auckland, New Zealand Stockholm Univ, Dept Astron, Oskar Klein Ctr, AlbaNova, SE-10691 Stockholm, Sweden Max Planck Inst Extraterr Phys, Giessenbachstr 1, D-85748 Garching, Germany Ohio State Univ, Dept Astron, 140 W 18th Ave, Columbus, OH 43210 USA Ohio State Univ, Ctr Cosmol & AstroParticle Phys CCAPP, 191 W Woodruff Ave, Columbus, OH 43210 USA Texas A&M Univ, Dept Phys & Astron, 4242 TAMU, College Stn, TX 77843 USA Cerro Tololo Interamer Observ, NSFs Natl Opt Infrared Astron Res Lab, Casilla 603, La Serena, Chile CNRS, Inst Astrophys Paris IAP, F-75014 Paris, France Sorbonne Univ, F-75014 Paris, France Peking Univ, Kavli Inst Astron & Astrophys, Yi He Yuan Rd 5, Beijing 100871, Peoples R China Osserv Astron Padova, NINAF, Vicolo Osservatorio 5, I-35122 Padua, Italy Campus UAB, CSIC, Inst Space Sci ICE, Carrer Can Magrans S-N, E-08193 Barcelona, Spain Univ Arizona, Steward Observ, 933 North Cherry Ave, Tucson, AZ 85721 USA Florida State Univ, Dept Phys, 77 Chieftan Way, Tallahassee, FL 32306 USA Univ Turku, Dept Phys & Astron, Tuorla Observ, FI-20014 Turku, Finland Univ Turku, Finnish Ctr Astron ESO FINCA, FI-20014 Turku, Finland Klein Karoo Observ, CBA Kleinkaroo, POB 281, ZA-6660 Calitzdorp, South Africa Univ Andres Bello, Dept Ciencias Fis, Avda Republ 252, Santiago 8320000, Chile Millennium Inst Astrophys, Camino Observatorio 1515, Santiago, Chile Steward Observ, Dept Astron, 933 North Cherry Ave,Rm N204, Tucson, AZ 85721 USA Univ Hawaii, Inst Astron, 2680 Woodlawn Dr, Honolulu, HI 96822 USA Queens Univ Belfast, Sch Maths & Phys, Astrophys Res Ctr, Belfast BT7 1NN, Antrim, North Ireland Australian Natl Univ, Res Sch Astron & Astrophys, Mt Stromlo Observ, Stromlo, ACT 2601, Australia Australian Natl Univ, Natl Ctr Publ Awareness Sci, Canberra, ACT 2611, Australia Peking Univ, Kavli Inst Astron & Astrophys, Yi He Yuan Rd 5, Beijing 100871, Peoples R China Univ Warsaw, Astron Observ, Al Ujazdowskie 4, PL-00478 Warsaw, Poland Aix Marseille Univ, CNRS, CNES, LAM, F-13013 Marseille, France Pontificia Univ Catolica Chile, Unidad Mixta Int Franco Chilena Astron, CNRS, INSU,UMI 3386, Santiago, Chile Pontificia Univ Catolica Chile, Inst Astrofis, Santiago, Chile Inst Astron, Madingley Rd, Cambridge CB3 0HA, England ESA, European Space Astron Ctr ESAC, RHEA Grp ESA, Madrid 28692, Spain Kavli Inst Cosmol, Inst Astron, Madingley Rd, Cambridge CB3 0HA, England Las Cumbres Observ, 6740 Cortona Dr,Suite 102, Goleta, CA 93117 USA Univ Calif Santa Barbara, Dept Phys, Santa Barbara, CA 93106 USA Ctr Astrophys Harvard & Smithsonian, 60 Garden St, Cambridge, MA 02138 USA NSF AI Inst Artificial Intelligence & Fundamental, Cambridge, MA USA Observ Carnegie Inst Sci, 813 Santa Barbara St, Pasadena, CA 91101 USA Cardiff Univ, Sch Phys & Astron, Queens Bldg, Cardiff CF24 3AA, Wales Univ Southampton, Sch Phys & Astron, Southampton SO17 1BJ, Hants, England Univ Dublin, Trinity Coll Dublin, Sch Phys, Dublin 2, Ireland Univ Free State, Dept Phys, POB 339, Bloemfontein, South Africa Las Campanas Observ, Carnegie Observ, Casilla 601, Colina El Pino, Chile Univ Birmingham, Birmingham Inst Gravitat Wave Astron, Birmingham B15 2TT, W Midlands, England Univ Birmingham, Sch Phys & Astron, Birmingham B15 2TT, W Midlands, England Univ Edinburgh, Inst Astron, Royal Observ, Blackford Hill, Edinburgh EH9 3HJ, Midlothian, Scotland Univ Diego Portales, Fac Ingn Ciencias, Nucleo Astron, Av Ejaercito 441, Santiago, Chile Univ N Carolina, Dept Phys & Astron, Chapel Hill, NC 27599 USA Florida State Univ, Dept Phys, 77 Chieftain Way, Tallahassee, FL 32306 USA Aarhus Univ, Dept Phys & Astron, DK-8000 Aarhus C, Denmark Univ Warwick, Dept Phys, Coventry CV4 7AL, W Midlands, England |
| Keywords | SN 2009IP LIGHT CURVES SUPERNOVA IMPOSTORS VARIABLE-STAR MASSIVE STAR UGC 2773-OT SKY SURVEY ULTRAVIOLET OUTBURST TELESCOPE |
| Issue Date | 27-May-2022 |
| Publisher | MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY |
| Abstract | We present the results from a high-cadence, multiwavelength observation campaign of AT 2016jbu (aka Gaia16cfr), an interacting transient. This data set complements the current literature by adding higher cadence as well as extended coverage of the light-curve evolution and late-time spectroscopic evolution. Photometric coverage reveals that AT 2016jbu underwent significant photometric variability followed by two luminous events, the latter of which reached an absolute magnitude of M-V similar to-18.5 mag. This is similar to the transient SN 2009ip whose nature is still debated. Spectra are dominated by narrow emission lines and show a blue continuum during the peak of the second event. AT 2016jbu shows signatures of a complex, non-homogeneous circumstellar material (CSM). We see slowly evolving asymmetric hydrogen line profiles, with velocities of 500 km s(-)(1) seen in narrow emission features from a slow-moving CSM, and up to 10 000 km s(-1) seen in broad absorption from some high-velocity material. Late-time spectra (similar to+1 yr) show a lack of forbidden emission lines expected from a core-collapse supernova and are dominated by strong emission from H, He I, and Ca II. Strong asymmetric emission features, a bumpy light curve, and continually evolving spectra suggest an inhibit nebular phase. We compare the evolution of H alpha among SN 2009ip-like transients and find possible evidence for orientation angle effects. The light-curve evolution of AT 2016jbu suggests similar, but not identical, circumstellar environments to other SN 2009ip-like transients. |
| URI | http://hdl.handle.net/20.500.11897/647323 |
| ISSN | 0035-8711 |
| DOI | 10.1093/mnras/stac1243 |
| Indexed | SCI(E) |
| Appears in Collections: | 科维理天文与天体物理研究所 |
