2024RNAAS...8..292N

Query : 2024RNAAS...8..292N

2024RNAAS...8..292N - Research Notes of the AAS, 8, 292 (2024/November-0)

Tentative Blazar Candidate EP240709A Associated with 4FGL J0031.5-5648: NICER and Archival Multiwavelength Observations.

NG M., HARE J., JAISAWAL G.K., MALACARIA C., MARKWARDT C.B. and SANNA A.

Abstract (from CDS):

We report on follow-up observations of the recently discovered transient by the Einstein Probe, EP240709A, with the Neutron star Interior Composition Explorer. We also incorporated archival multiwavelength survey data from the Neil Gehrels Swift Observatory (X-ray), Gaia (optical), the Fermi Gamma-ray Space Telescope (gamma-ray), and the Wide-field Infrared Survey Explorer (infrared) to distinguish between blazars and stellar systems. We suggest that EP240709A is likely an active blazar.

Abstract Copyright: © 2024. The Author(s). Published by the American Astronomical Society.

Journal keyword(s): Blazars - Active galactic nuclei

Simbad objects: 1

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Number of rows : 1
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2026 		#notes
1 SUMSS J003136-564637 BLL 00 31 35.4796812785 -56 46 41.469736929           ~ 13 0

Query : 2024RNAAS...8..292N

Basic data :
SUMSS J003136-564637 -- BL Lac
Other object types: otypes_help 		X (2024ATel16704,1eRASS,...), BLL (2025ApJ), BL? (2021MNRAS), Bz? (2025ApJ), * (Gaia), gam (4FGL), Rad (SUMSS), MIR (WISE), ev (EP)
ICRS coord. (ep=J2000) : 		00 31 35.4796812785 -56 46 41.469736929 (Optical) [ 0.2375 0.2546 90 ] A 2020yCat.1350....0G
FK4 coord. (ep=B1950 eq=1950) : 		00 29 15.2894638918 -57 03 15.205217762 [ 0.2375 0.2546 90 ]
Gal coord. (ep=J2000) : 		308.3931390863920 -60.1391278498805 [ 0.2375 0.2546 90 ]
Proper motions mas/yr : 		0.161 -0.067 [0.310 0.332 90] A 2020yCat.1350....0G
Parallaxes (mas): 		0.0323 [0.3401] A 2020yCat.1350....0G
Fluxes (1) :
G 19.690063 [0.012101] C 2022yCat.1355....0G
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Identifiers (11) :
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DES J003135.47-564641.4 1eRASS J003135.3-564638 SUMSS J003136-564637 WISE J003135.45-564641.3
EP 240709a 4FGL J0031.5-5648 SWIFT J003135.7-564640 Gaia DR3 4918773190794845824
EP J003136.8-564643 LSXPS J003135.7-564639 SwXF4 J003135.1-564640

References (13 between 1850 and 2026) (Total 13)
Simbad bibliographic survey began in 1850 for stars (at least bright stars) and in 1983 for all other objects (outside the solar system).
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Collections of Measurements Description of Measurements

Plx : 1    PM : 1   

   

External archives :

Archive data at HEASARC - High-Energy Astrophysics Science Archive Research Center

Data at NED - NASA/IPAC Extragalactic Database : SUMSS J003136-564637

Link by name to the catalogue in VizieR :

SUMSS J003136-564637 WISE J003135.45-564641.3 Gaia DR3 4918773190794845824

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