2017A&A...598A..81M


C.D.S. - SIMBAD4 rel 1.7 - 2020.07.04CEST02:34:04

2017A&A...598A..81M - Astronomy and Astrophysics, volume 598A, 81-81 (2017/2-1)

Peculiar objects towards 3FGL J0133.3+5930: an eclipsing Be star and an active galactic nucleus.

MARTI J., LUQUE-ESCAMILLA P.L., PAREDES J.M., IWASAWA K., GALINDO D., RIBO M. and MARIN-FELIP V.

Abstract (from CDS):

Aims. We aim to contribute to the identification of unassociated gamma-ray sources in the galactic plane to enlarge the currently known population of gamma-ray binaries and related systems, such as radio-emitting X-ray binaries and microquasars. These objects are currently regarded as excellent test beds for the understanding of high-energy phenomena in stellar systems.
Methods. Potential targets of study are selected based on cross-identification of the third Fermi Large Area Telescope catalogue with historical catalogues of luminous stars that have often been found as optical counterparts in known cases. Follow-up observations and analysis of multi-wavelength archival data are later used to seek further proofs of association beyond the simple positional agreement.
Results. Current results enable us to present here the case of the Fermi source 3FGL J0133.3+5930 where two peculiar objects have been discovered inside its region of uncertainty. One of them is the star TYC 3683-985-1 (LS I +59 79) whose eclipsing binary nature is reported in this work. The other is the X-ray source Swift J0132.9+5932, which we found to be a likely low-power active galactic nucleus at z=0.1143±0.0002. If this second object is of blazar type, it could easily account for the observed gamma-ray photon flux. However, this is not confirmed at present, thus rendering the star system TYC 3683-985-1 as a still possible alternative counterpart candidate to the Fermi source.

Abstract Copyright: © ESO, 2017

Journal keyword(s): binaries: eclipsing - stars: individual: TYC 3683-985-1 - gamma rays: general - X-rays: general

Simbad objects: 8

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Number of rows : 8

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 NVSS J013255+593217 Rad 01 32 55.0 +59 32 17           ~ 1 0
2 SWIFT J0132.9+5932 X 01 32 55.20 +59 32 14.7           ~ 1 0
3 2MASS J01325529+5932158 IR 01 32 55.2931290998 +59 32 15.898039043           ~ 1 0
4 3FGL J0133.3+5930 BLL 01 33 21 +59 30.8           ~ 6 0
5 1RXS J013326.9+592946 X 01 33 26.899 +59 29 46.50           ~ 1 0
6 EM* AS 25 Be* 01 33 28.7359683822 +59 30 02.172094365 10.61 10.98 10.7     B1/2Vnne 15 0
7 LS I +61 303 HXB 02 40 31.6641883136 +61 13 45.591138110 11.27 11.61 10.75 10.19 9.55 B0Ve 761 2
8 V* V479 Sct HXB 18 26 15.0561532140 -14 50 54.249464136 12.02 12.23 11.27 11.04   ON6V((f))z 492 2

    Equat.    Gal    SGal    Ecl

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2020.07.04-02:34:04

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