2011A&A...529A..56C


C.D.S. - SIMBAD4 rel 1.7 - 2019.11.20CET07:09:17

2011A&A...529A..56C - Astronomy and Astrophysics, volume 529A, 56-56 (2011/5-1)

The new carbon symbiotic star IPHAS J205836.43+503307.2.

CORRADI R.L.M., SABIN L., MUNARI U., CETRULO G., ENGLARO A., ANGELONI R., GREIMEL R. and MAMPASO A.

Abstract (from CDS):

We are performing a search for symbiotic stars using IPHAS, the INT Hα survey of the northern Galactic plane, and follow-up observations. Candidate symbiotic stars are selected on the basis of their IPHAS and near-IR colours, and spectroscopy and photometry are obtained to determine their nature. We present here observations of the symbiotic star candidate IPHAS J205836.43+503307.2. The optical spectrum shows the combination of a number of emission lines, among which are the high-excitation species of [OIII], HeII, [Cav], and [FeVII], and a red continuum with the features of a star at the cool end of the carbon star sequence. The nebular component is spatially resolved: the analysis of the spatial profile of the [NII]6583 line in the spectrum indicates a linear size of ∼2.5" along the east-west direction. Its velocity structure suggests an aspherical morphology. The near-infrared excess of the source, which was especially strong in 1999, indicated that a thick circumstellar dust shell was also present in the system. The carbon star has brightened in the last decade by two to four magnitudes at red and near-infrared wavelengths. Photometric monitoring during a period of 60 days from November 2010 to January 2011 reveals a slow luminosity decrease of 0.2mag. From the observed spectrophotometric properties and variability, we conclude that the source is a new Galactic symbiotic star of the D-type, of the rare kind that contains a carbon star, likely a carbon Mira. Only two other systems of this type are known in the Galaxy.

Abstract Copyright:

Journal keyword(s): surveys - binaries: symbiotic

Simbad objects: 17

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Number of rows : 17

N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2020
#notes
1 V* UV Aur C* 05 21 48.9137852435 +32 30 40.177257425   12.46 10.41 9.15   C8,1Je 197 0
2 HD 34842 ** 05 21 48.92 +32 30 39.8           C8,1Je+B9V 197 0
3 EM* StHA 55 Mi* 05 46 42.0750250231 +06 43 47.075703758     13.5     ~ 15 0
4 RAFGL 971 C* 06 36 54.2442987630 +03 25 28.677658825       18.4   C5,9e 62 0
5 V* RX Pup Sy* 08 14 12.3036011353 -41 42 29.086820756   12.39 9.00     M5.5 189 1
6 IRC +10216 C* 09 47 57.406 +13 16 43.56     10.96     C9,5e 2108 0
7 V* V Hya C* 10 51 37.2614060865 -21 15 00.339641553   12.23 6.80     C-N:6 335 0
8 THA 17-1 Sy* 12 51 26.1844075221 -64 59 57.980222885   14.13 13.81     C 35 0
9 WRAY 16-147 Sy* 14 11 52.0611401558 -51 26 24.183936749     14.20     ~ 219 1
10 WRAY 16-208 Sy* 16 14 01.1073903481 -56 59 28.038473712     16.00     M8/9e 84 1
11 EM* AS 210 Sy* 16 51 20.41 -26 00 26.7   11.5 11.9     ~ 69 1
12 NAME Gal Center reg 17 45 40.04 -29 00 28.1           ~ 11051 0
13 PN K 3-22 Sy* 19 09 26.60 +12 00 44.6           ~ 17 0
14 EM* AS 356 C* 19 23 14.1457198238 +24 27 39.662257883       10.28   Ce 25 0
15 IRAS 20570+5021 Sy* 20 58 36.4319879784 +50 33 07.280567161     15.1     Ce 7 0
16 RAFGL 3099 C* 23 28 17.1148783705 +10 54 37.400631176           C-rich 87 0
17 V* R Aqr Sy* 23 43 49.4629939776 -15 17 04.184232557   8.823 7.683 9.37   M6.5-8.5e 730 0

    Equat.    Gal    SGal    Ecl

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2019.11.20-07:09:17

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