Supernova 2011jt in Pgc 53208 = Psn J14532301+0257431
dc.catalogador | dfo | |
dc.contributor.author | Drake, A. J. | |
dc.contributor.author | Djorgovski, S. G. | |
dc.contributor.author | Graham, M. J. | |
dc.contributor.author | Mahabal, A. | |
dc.contributor.author | Williams, R. | |
dc.contributor.author | Prieto, J. L. | |
dc.contributor.author | Catelan, Marcio | |
dc.contributor.author | Beshore, E. C. | |
dc.contributor.author | Larson, S. M. | |
dc.contributor.author | Christensen, E. | |
dc.contributor.author | Silverman, J. M. | |
dc.contributor.author | Filippenko, A. V. | |
dc.contributor.author | Chen, J. -C. | |
dc.contributor.author | Wang, X. -F. | |
dc.contributor.author | Zhan, X. | |
dc.contributor.author | Zhang, T. -M. | |
dc.date.accessioned | 2024-03-05T15:15:32Z | |
dc.date.available | 2024-03-05T15:15:32Z | |
dc.date.issued | 2012 | |
dc.description.abstract | Report the discovery of an apparent supernova in unfiltered Catalina Sky Survey (CSS) images: SN 2011 UT R.A. (2000.0) Decl. Mag. Offset 2011jt Dec. 31.54 14 53 23.01 + 2 57 43.1 17.0 5".8 W, 16".4 S The variable was designated PSN J14532301+0257431 when it was posted at the Central Bureau's TOCP webpage and is here designated SN 2011jt based on the spectroscopic confirmation reported below. Additional CCD magnitudes for 2011jt: 2011 June 23.25 UT, [20.3 (CSS); 2012 Jan. 1.526, 16.5 (Joseph Brimacombe, Cairns, Australia; remotely using a 51-cm RCOS telescope + STL11K camera + luminance filter at the New Mexico Skies Observatory near Mayhill, NM, U.S.A.; position end figures 23s.02, 42".9; image posted at website URL http://www.flickr.com/photos/43846774@N02/6618245617/). J. M. Silverman and A. V. Filippenko, University of California, Berkeley, report that inspection of a CCD spectrum (range 340-1000 nm), obtained on Jan. 3 UT with the Shane 3-m reflector (+ Kast spectrograph) at Lick Observatory, shows that PSN J14532301+0257431 = SN 2011jt is a type-Ia supernova. After removal of the host-galaxy recession velocity of 8334 km/s (from the Sloan Digital Sky Survey Data Release 1), they find the absorption minimum of the Si II 635.5-nm line to be blueshifted by about 14700 km/s. Cross-correlation with a library of supernova spectra using the "SuperNova IDentification" code (SNID; Blondin and Tonry 2007, Ap.J. 666, 1024) indicates that the object is a normal type-Ia supernova about six days before maximum brightness. J.-C. Chen and X.-F. Wang, Tsinghua Center for Astrophysics, Tsinghua University; X. Zhan, Beijing Planetarium; T.-M. Zhang, National Astronomical Observatory of China (NAOC), report on an optical spectrogram (range 400-8800 nm) of PSN J14532301+0257431 = SN 2011jt that was obtained on 2012 Jan. 3.9 UT with the 2.16-m telescope (+ OMR) at Xinglong Station of NAOC. The spectrum is consistent with a type-Ia supernova at about one week before maximum. Cross-correlation with a library of supernova spectra using the "Supernova Identification" code (SNID; Blondin and Tonry 2007, Ap.J. 666, 1024) shows that it matches with SN 2002bo at -9 days. Adopting a recession velocity of 8334 km/s for the host galaxy from the NED, they measure a velocity of the Si II 635.5-nm absorption feature to be about 15000 km/s.... | |
dc.fuente.origen | ORCID | |
dc.identifier.uri | https://repositorio.uc.cl/handle/11534/84202 | |
dc.information.autoruc | Instituto de Astrofísica; Catelan , Marcio; 0000-0001-6003-8877; 1001556 | |
dc.language.iso | en | |
dc.rights | acceso restringido | |
dc.title | Supernova 2011jt in Pgc 53208 = Psn J14532301+0257431 | |
dc.type | informe | |
sipa.codpersvinculados | 1001556 | |
sipa.trazabilidad | ORCID;2024-01-22 |