2014A&A...564A..76M

Query : 2014A&A...564A..76M

2014A&A...564A..76M - Astronomy and Astrophysics, volume 564A76-76 (2014/4-1)

The narrow and moving HeII lines in nova KT Eridani.

MUNARI U., MASON E. and VALISA P.

Abstract (from CDS):

We present outburst and quiescence spectra of the classical nova KTEri and discuss the appearance of a sharp HeII 4686Å emission line, whose origin is a matter of discussion for those novae that showed a similar component. We suggest that the sharp HeII line, when it first appeared toward the end of the outburst optically thick phase, comes from the wrist of the dumbbell structure characterizing the ejecta. When the ejecta turned optically thin, the already sharp HeII line became two times narrower and originated from the exposed central binary. During the optically thin phase, the HeII line displayed a large change in radial velocity that had no counterpart in the Balmer lines (both their narrow cores and the broad pedestals). The large variability in radial velocity of the HeII line continued well into quiescence, and it remains the strongest emission line observed over the whole optical range.

Abstract Copyright: ∼

Journal keyword(s): novae, cataclysmic variables - stars: individual: KT Eridani

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 V* KT Eri No* 04 47 54.2014586736 -10 10 42.962267424   14.986 14.705 15.099   ~ 161 0

Query : 2014A&A...564A..76M

Basic data :
V* KT Eri -- Classical Nova
Other object types: otypes_help 		* (GSC,UCAC4,...), No* (2010ATel,NOVA), V* (2018AJ,V*), NIR (DENIS,2MASS), MIR (WISEA,WISE), CV* (2020MNRAS), X (1eRASS), Opt (ATO)
ICRS coord. (ep=J2000) : 		04 47 54.2014586736 -10 10 42.962267424 (Optical) [ 0.0161 0.0143 90 ] A 2020yCat.1350....0G
FK4 coord. (ep=B1950 eq=1950) : 		04 45 31.8788200425 -10 15 57.530027382 [ 0.0161 0.0143 90 ]
Gal coord. (ep=J2000) : 		207.9862592078387 -32.0201821277071 [ 0.0161 0.0143 90 ]
Proper motions mas/yr : 		6.471 -11.070 [0.023 0.020 90] A 2020yCat.1350....0G
Parallaxes (mas): 		0.1963 [0.0245] A 2020yCat.1350....0G
Fluxes (10) :
B 14.986 [0.64] D 2012yCat.1322....0Z
V 14.705 [0.62] D 2012yCat.1322....0Z
R 15.099 [0.10] E 2012yCat.1322....0Z
G 14.931672 [0.015901] C 2020yCat.1350....0G
J 14.619 [0.030] C 2003yCat.2246....0C
H 14.159 [0.050] C 2003yCat.2246....0C
K 14.092 [0.068] C 2003yCat.2246....0C
g 14.802 [0.65] D 2012yCat.1322....0Z
r 14.675 [0.60] D 2012yCat.1322....0Z
i 14.517 [0.59] D 2012yCat.1322....0Z
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Identifiers (14) :
An access of full data is available using the icon Vizier near the identifier of the catalogue

NOVA Eri 2009 GSC 05325-01837 USNO-B1.0 0798-00048707 Gaia DR2 3184664584368981760
ATO J071.9758-10.1786 2MASS J04475419-1010429 V* KT Eri Gaia DR3 3184664584368981760
DENIS J044754.2-101042 TIC 167485724 WISEA J044754.20-101042.7
1eRASS J044754.2-101047 UCAC4 400-006818 WISE J044754.20-101043.1

References (161 between 1850 and 2026) (Total 161)
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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Collections of Measurements Description of Measurements

Distance : 1    Var : 1    Plx : 2    PM : 2   

   

External archives :

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

Link by name to the catalogue in VizieR :

DENIS J044754.2-101042 GSC 05325-01837 2MASS J04475419-1010429 UCAC4 400-006818 USNO-B1.0 0798-00048707
V* KT Eri WISEA J044754.20-101042.7 WISE J044754.20-101043.1 Gaia DR2 3184664584368981760 Gaia DR3 3184664584368981760

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