2005A&A...438L..13Z


Query : 2005A&A...438L..13Z

2005A&A...438L..13Z - Astronomy and Astrophysics, volume 438, L13-16 (2005/8-1)

The cool Galactic R Coronae Borealis variable DY Persei.

ZACS L., CHEN W.P., ALKSNIS O., KINOSHITA D., MUSAEV F.A., BRICE T., SANCHAWALA K., LEE H.T. and CHEN C.W.

Abstract (from CDS):

Result. of first CCD photometry during the recent deep light decline, and high-resolution spectroscopy, are presented for DY Persei. The spectra show variable blueshifted features in the sodium D lines. The Ci lines are strong whereas neutron-capture elements are not enhanced. The isotopic 13CN(2,0) lines relative to 12CN are of similar strength with those for the carbon star U Hya. All these confirm the RCB nature of DY Per and the existence of ejected clouds. At least two clouds are revealed at -197.3 and -143.0km/s. A star was detected about 0.4" to the west and 2.5" to the north from DY Per. This anonymous companion, with observed colour indices (B-V)=0.68 and (V-R)≃1.1, may be a foreground star.

Abstract Copyright:

Journal keyword(s): stars: carbon - stars: winds, outflows - stars: fundamental parameters - stars: circumstellar matter - stars: individual: DY Per

CDS comments: Anonymous companion to DY Per later dubbed "Taipei star".

Simbad objects: 10

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Number of rows : 10
N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2022
#notes
1 GSC 00012-00257 * 00 54 16.1852475193 +00 39 55.008693685 16.425 15.236 13.818 12.889 11.982 ~ 10 0
2 UCAC4 454-001168 * 00 54 30.7761427608 +00 40 17.015404476 17.763 16.504 15.355 14.986 14.101 ~ 11 0
3 GSC 00012-00296 * 00 54 33.5915267352 +00 41 05.399175300 15.264 15.024 14.325 13.926 13.555 ~ 15 0
4 GSC 00012-00261 * 00 54 37.1568521352 +00 38 57.601691448 14.472 13.992 13.178 12.732 12.338 ~ 17 0
5 NAME Taipei star * 02 35 17.12 +56 08 47.0           ~ 3 1
6 V* DY Per RC* 02 35 17.1274583280 +56 08 44.717128260   12.88 11.09 9.93 8.64 C-R4+ 71 0
7 NAME LMC G 05 23 34.6 -69 45 22     0.4     ~ 16168 1
8 V* U Hya C* 10 37 33.2729535 -13 23 04.352923 13.29 7.51 4.82 3.05 1.78 C-N5 291 0
9 * alf Boo RG* 14 15 39.67207 +19 10 56.6730 2.46 1.18 -0.05 -1.03 -1.68 K1.5IIIFe-0.5 2232 0
10 V* RY Sgr RC* 19 16 32.7668605944 -33 31 20.340212592 6.20 6.27 6.25     Cpec 358 0

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2022.08.18-04:07:34

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