Optical Spectra of the Type Ia Supernova 1998aq | Zendy

David Branch | Zendy; P. Garnavich | Zendy; T. Matheson | Zendy; E. Baron | Zendy; R. Thomas | Zendy; K. Hatano | Zendy; P. Challis | Zendy; Saurabh W. Jha | Zendy; R. Kirshner | Zendy

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Optical Spectra of the Type Ia Supernova 1998aq

Author(s) -

David Branch,

P. Garnavich,

T. Matheson,

E. Baron,

R. Thomas,

K. Hatano,

P. Challis,

Saurabh W. Jha,

R. Kirshner

Publication year - 2003

Publication title -

the astronomical journal

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 2.61

H-Index - 271

eISSN - 1538-3881

pISSN - 0004-6256

DOI - 10.1086/377016

Subject(s) - supernova , physics , astrophysics , spectral line , brightness , line (geometry) , optical spectra , type (biology) , wavelength , emission spectrum , parameterized complexity , astronomy , optics , geology , mathematics , geometry , paleontology , combinatorics

We present 29 optical spectra of the normal Type Ia SN 1998aq, ranging from 9days before to 241 days after the time of maximum brightness. Thisspectroscopic data set, together with photometric data presented elsewhere,makes SN 1998aq one of the best observed Type Ia supernova at opticalwavelengths. We use the parameterized supernova synthetic-spectrum code SYNOWto study line identifications in the early photospheric-phase spectra. Theresults include evidence for lines of singly ionized carbon, at ejectionvelocities as low as 11,000 km/sec. Implications for explosion models arediscussed.Comment: 40 pages including 20 figures and 4 tables. Accepted by A

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