2007A&A...467..277M


C.D.S. - SIMBAD4 rel 1.7 - 2019.10.21CEST05:48:14

2007A&A...467..277M - Astronomy and Astrophysics, volume 467, 277-281 (2007/5-3)

First detection of Zeeman absorption lines in the polar VV Puppis. Observations of low activity states.

MASON E., WICKRAMASINGHE D., HOWELL S.B. and SZKODY P.

Abstract (from CDS):

We investigated the low state of the polar VV Pup by collecting high S/N time series spectra. We monitored VV Pup with VLT+FORS1 and analyzed the evolution of its spectroscopic features across two orbits. We report the first detection of photospheric Zeeman lines in VV Puppis. We argue that the photospheric field structure is inconsistent with the assumption that the accretion shocks are located close to the foot points of a closed field line in a dipolar field distribution. A more complex field structure and coupling process is implied making VV Puppis similar to other well studied AM Herculis type systems.

Abstract Copyright:

Journal keyword(s): novae, cataclysmic variables - stars: magnetic fields - binaries: close

Simbad objects: 7

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Number of rows : 7

N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2019
#notes
1 V* BL Hyi NL* 01 41 00.3995669445 -67 53 27.469105974   14.9       Am 198 0
2 V* EF Eri NL* 03 14 13.2527107604 -22 35 42.917018996   15.4 14.53 13.5   ~ 409 0
3 V* VV Pup AM* 08 15 06.8010742098 -19 03 17.765651066     13.90     M7V 383 0
4 * 93 Leo RS* 11 47 59.13595 +20 13 08.1500   5.065 4.522     F8III+A6III 209 1
5 WG 22 WD* 12 38 49.7813250074 -49 48 00.218655097   14.14 13.96     DA4.2 201 0
6 PG 1550+191 CV* 15 52 47.1969313042 +18 56 28.845524001   16.4 15.46 17.0   M6.5Ve 176 0
7 CD-38 10980 WD* 16 23 33.8384178546 -39 13 46.160032569 9.916 10.885 11.029 10.936 10.841 DA2 429 1

    Equat.    Gal    SGal    Ecl

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2019.10.21-05:48:14

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