1994A&A...285L..13B

Query : 1994A&A...285L..13B

1994A&A...285L..13B - Astronomy and Astrophysics, volume 285L13-16 (1994/5-2)

Narrow features in the early spectrum of SN 1993J.

BENETTI S., PATAT F., TURATTO M., CONTARINI G., GRATTON R. and CAPPELLARO E.

Abstract (from CDS):

High resolution spectra of SN 1993J obtained on March 31.0, only three days past outburst, show narrow emission lines due to Hα, HeII λ4686 and to the high ionization [FeX]λ6374 and [FeXIV]λ5303. The latter, to our knowledge, has never been identified before in SN spectra. The FWHM of the recombination lines indicates that the emitting gas has velocities ∼170km/s which seems too large to be attributed to a normal stellar wind. The detection of narrow lines soon after outburst and their disappearance one week later, indicate that the circumstellar gas is confined close to the exploding star (R≤4x10¹⁵cm). The coronal lines are probably generated in the CSM heated by the radiation emerging from the shocked regions. A kinetic temperature of ∼2.5x10⁶K is derived from the line widths. The interstellar NaID absorption shows a multiple component structure in agreement with previous reports. Its equivalent width suggests a moderately high reddening, 0.2≤E(B-V)=<0.8 wheras the upper limits to the 5780A and 5797A DIBs indicates a reddening E(B-V)=<0.4

Abstract Copyright: ∼

Journal keyword(s): supernovae and supernovae remnants: general - supernovae and supernovae remnants: individual: SN 1993J - interstellar medium: general

Simbad objects: 1

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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 : 1994A&A...285L..13B

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 ~

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`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).

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

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

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IERS B0951+692

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