2013A&A...557A..38V

Query : 2013A&A...557A..38V

2013A&A...557A..38V - Astronomy and Astrophysics, volume 557A38-38 (2013/9-1)

Spectropolarimetric observations of cool DQ white dwarfs.

VORNANEN T., BERDYUGINA S.V. and BERDYUGIN A.

Abstract (from CDS):

Following our recent discovery of a new magnetic DQ white dwarf (WD) with CH molecular features, we report the results for the rest of the DQ WDs from our survey. We use high signal-to-noise spectropolarimetric data to search for magnetic fields in a sample of 11 objects. One object in our sample, WD1235+422, shows the signs of continuum circular polarization that is similar to some peculiar DQs with unidentified molecular absorption bands, but the low signal-to-noise ratio and spectral resolution of these data make more observations necessary to reveal the true nature of this object.

Abstract Copyright: ∼

Journal keyword(s): molecular processes - white dwarfs - magnetic fields

Simbad objects: 22

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Number of rows : 22
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 EGGR 246 WD* 00 41 26.0270023159 -22 21 02.292155084   15.25 14.60 14.088 13.671 DQ9 120 0
2 Wolf 1516 WD* 01 18 00.0751414753 +16 10 20.561712526   13.96   13.9   DC6 101 0
3 Wolf 219 WD* 03 44 34.8473315202 +18 26 09.820674151   15.50   14.8   DQ8 90 0
4 EGGR 41 WD* 04 37 47.4072688697 -08 49 10.619853645   14.24 14.10     DQ8 96 0
5 EGGR 248 WD* 05 51 19.4818569216 -00 10 21.107152956   15.06 14.60     DQ8P 165 0
6 EGGR 51 WD* 07 10 14.3425456729 +37 40 19.471143723   15.94   15.4   DQ8 62 0
7 Ton 368 WD* 08 59 14.7138293023 +32 57 12.158356354   15.18   14.9   DQ6 112 0
8 LP 426-49 WD* 09 02 08.3676156506 +20 10 51.576395181   19.38   17.4   DQ 22 0
9 PG 0913+104 WD* 09 16 02.6879038848 +10 11 10.690622088   16.0   15.4   DCQ5 40 0
10 L 462-56 A WD* 09 36 59.7883670064 -37 21 30.803043503     14.85 15.11   DQ6 36 0
11 EGGR 251 WD* 09 50 17.1410927808 +53 15 14.832491112   15.30   15.1   DQ6 67 0
12 LP 315-42 WD* 10 11 41.5774767696 +28 45 59.070596780   18.85   16.1   DQ 53 0
13 EGGR 535 WD* 10 38 55.5700182462 -20 40 56.834110426   15.9 16.28 15.54 15.34 DQ10P 98 0
14 LSPM J1113+0146 WD* 11 13 41.3367222119 +01 46 42.060595276   19.1   18.7   DQH 23 0
15 LAWD 35 WD* 11 18 15.0642058690 -03 14 05.576521670   15.39 15.40     DC5 48 0
16 Ruiz 439-162 WD* 11 29 52.0364782335 -31 22 47.219201137   19.0 18.77 18.1   DQH 34 0
17 LP 217-47 WD* 12 37 52.2312390106 +41 56 24.685623772   16.8   16.7   DQ 31 0
18 OMHR J131148.18+292337.1 WD* 13 11 47.0659076077 +29 23 49.670430735   19.2 18.75 18.03 17.51 DQpec 22 1
19 LP 618-6 WD* 13 33 59.8439831563 +00 16 55.033199072   19.51   18.5   DQH 28 0
20 EGGR 258 WD* 16 34 21.5518633862 +57 10 08.868180953       14.770   DQ8 132 0
21 WG 39 WD* 21 57 38.3567715267 -51 00 31.521044535   14.94 14.73 14.53   DQ7 87 0
22 G 157-34 WD* 23 14 25.1848641615 -06 32 47.884151896 14.90 15.55 15.42     DC 52 0

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