TY - JOUR
T1 - A high-resolution spectroscopic search for the remaining donor for Tycho'S supernova
AU - Kerzendorf, Wolfgang E.
AU - Yong, David
AU - Schmidt, Brian P.
AU - Simon, Joshua D.
AU - Jeffery, C. Simon
AU - Anderson, Jay
AU - Podsiadlowski, Philipp
AU - Gal-Yam, Avishay
AU - Silverman, Jeffrey M.
AU - Filippenko, Alexei V.
AU - Nomoto, Ken'Ichi
AU - Murphy, Simon J.
AU - Bessell, Michael S.
AU - Venn, Kim A.
AU - Foley, Ryan J.
N1 - Schmidt's ARC Laureate Fellowship [FL0992131]; Israeli Science Foundation; Christopher R. Redlich Fund; TABASGO Foundation; NSF [AST-0908886, AST-1211916]; NASA from the Space Telescope Science Institute [GO-10098, GO-12469, AR-12623]; NASA [NAS 5-26555]; Clay Fellowship; W. M. Keck FoundationB. P. Schmidt and W. E. Kerzendorf were supported by Schmidt's ARC Laureate Fellowship (FL0992131). A. Gal-Yam acknowledges support by the Israeli Science Foundation. A. V. Filippenko is grateful for the support of the Christopher R. Redlich Fund, the TABASGO Foundation, and NSF grants AST-0908886 and AST-1211916; funding was also provided by NASA grants GO-10098, GO-12469, and AR-12623 from the Space Telescope Science Institute, which is operated by AURA, Inc., under NASA contract NAS 5-26555. R. J. Foley was supported by a Clay Fellowship.Some of the data presented herein were obtained at the W. M. Keck Observatory, which is operated as a scientific partnership among the California Institute of Technology, the University of California, and NASA; the observatory was made possible by the generous financial support of the W. M. Keck Foundation.
PY - 2013/9/10
Y1 - 2013/9/10
N2 - In this paper, we report on our analysis using Hubble Space Telescope astrometry and Keck-I HIRES spectroscopy of the central six stars of Tycho's supernova remnant (SN 1572). With these data, we measured the proper motions, radial velocities, rotational velocities, and chemical abundances of these objects. Regarding the chemical abundances, we do not confirm the unusually high [Ni/Fe] ratio previously reported for Tycho-G. Rather, we find that for all metrics in all stars, none exhibit the characteristics expected from traditional Type Ia supernova single-degenerate-scenario calculations. The only possible exception is Tycho-B, a rare, metal-poor A-type star; however, we are unable to find a suitable scenario for it. Thus, we suggest that SN 1572 cannot be explained by the standard single-degenerate model.
AB - In this paper, we report on our analysis using Hubble Space Telescope astrometry and Keck-I HIRES spectroscopy of the central six stars of Tycho's supernova remnant (SN 1572). With these data, we measured the proper motions, radial velocities, rotational velocities, and chemical abundances of these objects. Regarding the chemical abundances, we do not confirm the unusually high [Ni/Fe] ratio previously reported for Tycho-G. Rather, we find that for all metrics in all stars, none exhibit the characteristics expected from traditional Type Ia supernova single-degenerate-scenario calculations. The only possible exception is Tycho-B, a rare, metal-poor A-type star; however, we are unable to find a suitable scenario for it. Thus, we suggest that SN 1572 cannot be explained by the standard single-degenerate model.
UR - http://www.scopus.com/inward/record.url?scp=84883625505&partnerID=8YFLogxK
U2 - https://doi.org/10.1088/0004-637X/774/2/99
DO - https://doi.org/10.1088/0004-637X/774/2/99
M3 - مقالة
SN - 0004-637X
VL - 774
JO - Astrophysical Journal
JF - Astrophysical Journal
IS - 2
M1 - 99
ER -