2003A&A...410..943S


Query : 2003A&A...410..943S

2003A&A...410..943S - Astronomy and Astrophysics, volume 410, 943-949 (2003/11-2)

Recovery of the old nova V840 Ophiuchi: A carbon rich system.

SCHMIDTOBREICK L., TAPPERT C., BIANCHINI A. and MENNICKENT R.E.

Abstract (from CDS):

We present optical spectroscopy and multi colour photometry of the old nova V840 Oph. We rediscovered the nova based on its position in the colour-colour diagrams. It stands out as a very blue object with an additional red component. We present the first optical spectroscopy of this candidate and confirm its nova character. Furthermore, V840 Oph has been found as one of very few cataclysmic variables showing CIV emission at λ=580/1nm. From the analysis of the carbon lines it seems probable that V840 Oph contains actually a carbon-rich secondary star. So far, only the nova-like QU Car has been known to have such a companion. We furthermore find spectroscopic evidence that V840 Oph has a hot, dense accretion disc or stream and is probably a magnetic system.

Abstract Copyright:

Journal keyword(s): stars: novae, cataclysmic variables - stars: individual: V840 Oph

Simbad objects: 11

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Number of rows : 11
N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2024
#notes
1 V* CP Pup No* 08 11 46.0634106720 -35 21 04.986480708   15.436 15.227     ~ 264 1
2 V* SW Sex CV* 10 15 09.3769935988 -03 08 32.850732738           ~ 204 0
3 V* QU Car CV* 11 05 42.4858973880 -68 37 58.231932240 10.74 11.45 11.54 11.57   A 104 0
4 [D87] V840 Oph Star 3 * 16 54 43.85 -29 37 22.9     19.95     ~ 2 0
5 V* V840 Oph No* 16 54 43.92 -29 37 26.8           ~ 31 0
6 [D87] V840 Oph Star 1 * 16 54 43.92 -29 37 26.8     19.32     ~ 2 0
7 [D87] V840 Oph Star 2 * 16 54 44.07 -29 37 27.7     19.71     ~ 2 0
8 V* V603 Aql No* 18 48 54.6369872232 +00 35 02.857106184 10.73 12.106 12.087 11.986   OB+e: 547 0
9 V* V Sge CV* 20 20 14.6911060272 +21 06 10.437106644   11.27 11.22 11.54   Be 215 0
10 V* HR Del No* 20 42 20.3468874528 +19 09 39.305636208   12.380 12.404 12.508   ~ 501 0
11 V* V1500 Cyg No* 21 11 36.5809818696 +48 09 01.952490204           ~ 797 0

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