1996A&A...307..166Z

Query : 1996A&A...307..166Z

1996A&A...307..166Z - Astronomy and Astrophysics, volume 307166-171 (1996/3-1)

NLTE treatment of calcium in the Monte Carlo modeling of early-time spectra of SN 1993J.

ZHANG Q. and WANG Z.R.

Abstract (from CDS):

NLTE treatment of calcium with five lower bound energy levels of Ca II and the ionization state of Ca III is annexed to the Monte Carlo model to improve our study on the early-time spectra of SN 1993J. This NLTE + Monte Carlo code is employed in modeling the ultraviolet and optical spectra of SN 1993J obtained simultaneously on 1993 April 15 by the HST and at Lick Observatory (Jeffery et al. 1994). With a solar composition of element abundances, most observed spectral lines are reproduced by a power law density structure of index around 22. Ca II lines such as Ca II H+K and infrared triplet are improved both in intensities and profiles compared with models without NLTE treatment. The NLTE study of calcium in early-time spectra of SN 1993J may also give information of the abundance of the element. Detailed calculations suggest that calcium may have only half of its solar composition in the outer atmosphere of SN 1993J.

Abstract Copyright: ∼

Journal keyword(s): supernovae: individual (SN 1993J) - line: formation - stars: abundances

Simbad objects: 1

View the references in ADS

Number of rows : 1

N	Identifier	Otype	ICRS (J2000) RA	ICRS (J2000) DEC	Mag U	Mag B	Mag V	Mag R	Mag I	Sp type	#ref 1850 - 2026	#notes
1	SN 1993J	SN*	09 55 24.77476	+69 01 13.7026		10.8	12.0			SNIIb	1507	1

Query : 1996A&A...307..166Z

Basic data :

SN 1993J -- SuperNova

X (2012ApJ,PBC,...), Rad (ICRF,IERS,...), SN* (2012A&A,SN), V* (AAVSO), gam (INTREF)

09 55 24.77476 +69 01 13.7026 (Radio) [ 0.640 0.034 0 ] A 2004AJ....127.3587F

09 51 19.03104 +69 15 26.5605 [ 0.640 0.034 0 ]

142.14985622 +40.91561152 [ 0.640 0.034 0 ]

V(km/s) -30 [~] / z(~) -0.0001 [~] / cz -30 [~] D 2006AJ....132..756J

SNIIb C 2014AJ....147...99M

B 10.8 [~] D 2008yCat.2283....0B

V 12.0 [~] E ~

Overlay

points in this preview

2MASS DSS

All

(CDSPortal)

Send to

Hierarchy : number of linked objects
whatever the membership probability is (see description here ) :

An access of full data is available using the icon Vizier near the identifier of the catalogue

`SN 1993J`	`PBC J0955.1+6904`	`[IW2001] H18`	`[WMR2006] M81 XMM2`
`ICRF J095524.7+690113`	`RFC J0955+6901`	`[IW2001] P36`	`EQ 0951+692`
`IERS B0951+692`	`RORF 0951+692`	`[SGM2003] 88`	`AAVSO 0947+69`
`INTREF 395`	`2XMM J095524.7+690114`	`[SPZ2011] 62`

References (1507 between 1850 and 2026) (Total 1507)
Simbad bibliographic survey began in 1850 for stars (at least bright stars) and in 1983 for all other objects (outside the solar system).

Follow new references on this object

Collections of Measurements

Observing logs

External archives :

Archive data at HEASARC - High-Energy Astrophysics Science Archive Research Center

Data at NED - NASA/IPAC Extragalactic Database : SN 1993J

Link by name to the catalogue in VizieR :

IERS B0951+692

Search by coordinates in Vizier (radius: 5 arcsec)

Annotations :
Annotations allow a user to add a note or report an error concerning the astronomical object and its data. It requires registration to post a note. See description .
Please, have a look at Best practices. The list of all annotations to SIMBAD objects can be found here .

The annotation server is currently not available. Sorry for any inconvenience

To bookmark this query, right click on this link: simbad:objects in 1996A&A...307..166Z and select 'bookmark this link' or equivalent in the popup menu