2018MNRAS.476.1835F

Query : 2018MNRAS.476.1835F

2018MNRAS.476.1835F - Mon. Not. R. Astron. Soc., 476, 1835-1839 (2018/May-2)

Resolving the host galaxy of a distant blazar with LBT/LUCI 1 + ARGOS.

FARINA E.P., GEORGIEV I.Y., DECARLI R., TERZIC T., BUSONI L., GASSLER W., MAZZONI T., BORELLI J., ROSENSTEINER M., ZIEGLEDER J., BONAGLIA M., RABIEN S., BUSCHKAMP P., ORBAN DE XIVRY G., RAHMER G., KULAS M. and PETER D.

Abstract (from CDS):

BL Lac objects emitting in the very high energy (VHE) regime are unique tools to peer into the properties of the extragalactic background light (EBL). However, due to the typical absence of features in their spectra, the determination of their redshifts has proven challenging. In this work, we exploit the superb spatial resolution delivered by the new Advanced Rayleigh guided Ground layer adaptive Optics System (ARGOS) at the Large Binocular Telescope to detect the host galaxy of HESS J1943+213, a VHE emitting BL Lac shining through the Galaxy. Deep H-band imaging collected during the ARGOS commissioning allowed us to separate the contribution of the nuclear emission and to unveil the properties of the host galaxy with unprecedented detail. The host galaxy is well fitted by a Sersic profile with index of n ∼ 2 and total magnitude of HHost ∼ 16.15 mag. Under the assumption that BL Lac host galaxies are standard candles, we infer a redshift of z ∼ 0.21. In the framework of the current model for the EBL, this value is in agreement with the observed dimming of the VHE spectrum due to the annihilation of energetic photons on the EBL

Abstract Copyright: © 2018 The Author(s) Published by Oxford University Press on behalf of the Royal Astronomical Society

Journal keyword(s): instrumentation: adaptive optics - BL Lacertae objects: individual: HESS J1943+213 - infrared: galaxies

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 1RXS J194356.1+211731 Bla 19 43 56.24400 +21 18 23.3784           ~ 99 1

Query : 2018MNRAS.476.1835F

Basic data :
1RXS J194356.1+211731 -- Blazar
Other object types: otypes_help 		gam (2018A&A,1BIGB,...), Rad (BWE,F3R,...), X (2022MNRAS,CXOU,...), Bz? (2019A&A,3HSP,...), Bla (2017A&A), NIR (2MASS,UGPS), BL? (2021MNRAS), AG? (2010A&A), MIR (WISE), Opt (PSO)
ICRS coord. (ep=J2000) : 		19 43 56.24400 +21 18 23.3784 (Near-IR) [ 110 110 35 ] C 2003yCat.2246....0C
FK4 coord. (ep=B1950 eq=1950) : 		19 41 45.86761 +21 11 08.5615 [ 110 110 35 ]
Gal coord. (ep=J2000) : 		057.76370141 -01.29472757 [ 110 110 35 ]
Radial velocity / Redshift / cz : 		V(km/s) 58840 [~] / z(photometric) 0.22 [~] / cz 65954 [~]
   E 2019A&A...632A..77C
Fluxes (4) :
K 13.980 [0.070] C 2003yCat.2246....0C
r (AB) 22.4158 [0.1720] D 2017yCat.2349....0C
i (AB) 20.6556 [0.0120] C 2017yCat.2349....0C
z (AB) 19.3893 [0.0378] C 2017yCat.2349....0C
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Identifiers (32) :
An access of full data is available using the icon Vizier near the identifier of the catalogue

2MASS J19435624+2118233 GB6 B1941+2111 PBC J1943.9+2118 TeV J1943+213
1BIGB J194356.2+211821 87GB 194146.4+211058 PSO J295.9843+21.3065 TGSSADR J194356.0+211828
BWE 1941+2111 HESS J1943+213 RFS 964 TIC 360516730
CXOU J194356.2+211823 3HSP J194356.2+211822 1RXH J194356.2+211824 UGPS J194356.23+211823.3
F3R 2003 IGR J19443+2117 1RXS J194356.1+211731 VER J1943+213
4FGL J1944.0+2117 MITG J194359+2118 SWIFT J1943.5+2120 2WHSP J194356.2+211821
2FHL J1944.1+2117 MITG J194357+2117 SWIFT J194353.0+212119 WISE J194356.25+211823.2
3FHL J1943.9+2117 NVSS J194356+211826 SWIFT J1943.9+2119 WSRTGP 1941+2111

References (99 between 1850 and 2026) (Total 99)
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

Velocities : 1   

   

External archives :

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

Data at NED - NASA/IPAC Extragalactic Database : 1RXS J194356.1+211731

Link by name to the catalogue in VizieR :

2MASS J19435624+2118233 BWE 1941+2111 F3R 2003 MITG J194359+2118 MITG J194357+2117
NVSS J194356+211826 1RXS J194356.1+211731 UGPS J194356.23+211823.3 WISE J194356.25+211823.2

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