2013A&A...558A...2M


C.D.S. - SIMBAD4 rel 1.7 - 2019.11.14CET08:58:11

2013A&A...558A...2M - Astronomy and Astrophysics, volume 558A, 2-2 (2013/10-1)

Discovery of a planetary nebula surrounding the symbiotic star DT Serpentis.

MUNARI U., CORRADI R.L.M., SIVIERO A., BALDINELLI L. and MAITAN A.

Abstract (from CDS):

We report the discovery of a planetary nebula centered on the poorly studied symbiotic binary star DT Ser. In a few other symbiotic stars spatially resolved nebulae have been discovered as well, but only one of them probably is a genuine planetary nebula, while the others are likely to originate in complex mass-ejection episodes from the interacting binary central stars that are possibly related to nova-like outbursts. The rim of the planetary nebula around DT Ser is severely distorted toward a brighter star 5 arcsec away. In infrared WISE data, this star shows the presence of a detached cold-dust shell similar to those observed in post-AGB stars. The apparent association of the symbiotic star and its planetary nebula with the nearby possible post-AGB object is discussed. We also discuss the sparse and conflicting literature data that could support an observed variability of the surface brightness of the planetary nebula. The puzzling and intriguing characteristics displayed by DT Ser are surely worth additional and more detailed investigations.

Abstract Copyright:

Journal keyword(s): binaries: symbiotic - planetary nebulae: general - stars: individual: DT Ser - stars: AGB and post-AGB

Simbad objects: 18

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Number of rows : 18

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 * ups And PM* 01 36 47.84216 +41 24 19.6443 4.70 4.64 4.10 3.64 3.35 F9V 883 1
2 V* V471 Per Al* 01 58 49.6642388419 +52 53 48.460982843   14.06 13.08     G2Ib 168 1
3 * 48 Aur cC* 06 28 34.0875086 +30 29 34.914168 6.73 6.23 5.55   4.777 F5.5-G0Ib 355 0
4 EM* AS 201 PN 08 31 42.8825036476 -27 45 31.541479213   13 11.80     F9III 86 0
5 V* BI Cru Sy* 12 23 25.9928834665 -62 38 15.987814001 12.06 12.18 11.00 10.71   M2/3 124 0
6 WRAY 16-147 Sy* 14 11 52.0611401558 -51 26 24.183936749     14.20     ~ 219 1
7 WRAY 16-208 Sy* 16 14 01.1073903481 -56 59 28.038473712     16.00     M8/9e 84 1
8 PN Mz 3 PN 16 17 13.3911453558 -51 59 10.706640574   10.8 14.00     O9.5 329 0
9 PN M 2-9 PN 17 05 37.952 -10 08 34.58   12.59 14.7     Be 493 0
10 NAME DT Ser B Sy? 18 01 52.1 -01 26 19 15.32 15.91 15.40 15.46 15.36 ~ 3 0
11 V* DT Ser ** 18 01 52.19 -01 26 17.4   12.6   12.7   ~ 13 0
12 NAME DT Ser A pA? 18 01 52.2757986870 -01 26 15.680928439   13.56 12.80     F8III-V 3 0
13 NAME DT Ser PN PN? 18 01 52.3 -01 26 16           ~ 2 0
14 V* CH Cyg Sy* 19 24 33.0697620341 +50 14 29.057625755 8.14 8.77 7.08   5.345 M7IIIab+Be 734 0
15 V* HM Sge Sy* 19 41 57.0758884476 +16 44 39.856454738   12.38 11.10     M7 432 2
16 EM* AS 373 Sy* 19 57 05.0184580246 +39 49 36.085051314         10.592 M6/8e 564 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
18 HD 224342 * 23 57 03.6321017149 +42 39 29.635881633   6.713 6.020     F8III 43 0

    Equat.    Gal    SGal    Ecl

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2019.11.14-08:58:11

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