2014MNRAS.439.1548A

Query : 2014MNRAS.439.1548A

2014MNRAS.439.1548A - Mon. Not. R. Astron. Soc., 439, 1548-1555 (2014/April-1)

X-ray time delays in the narrow line Seyfert 1 galaxy PG 1244+026.

ALSTON W.N., DONE C. and VAUGHAN S.

Abstract (from CDS):

We analyse the X-ray time-lags in the narrow line Seyfert 1 (NLS1) galaxy PG 1244+026 (MBH ∼ 107 M☉, L/LEdd ∼ 1). The time delay between the soft (0.3-0.7keV) and harder (1.2-4.0keV) variations shows the well-established switch from hard lags at low frequencies to soft lags at high frequencies. The low-frequency hard lags are qualitatively consistent with the propagation of fluctuations model, with some long-time-scale response of the reflection component. The high-frequency soft lag appears to extend over a wide frequency band, that we divide this into two narrow frequency ranges, and examine the lag as a function of energy for each of these. At high frequencies the soft excess emission is delayed with respect to the harder energy bands, without any corresponding strong, hard X-ray reflection signature. At even higher frequencies a soft lag is seen at the softest energies, as well as tentative evidence for an iron Kα reverberation signal. These results point to the importance of reprocessing as well as reflection in determining the lags in NLS1s.

Abstract Copyright: © 2014 The Authors Published by Oxford University Press on behalf of the Royal Astronomical Society (2014)

Journal keyword(s): galaxies: active - galaxies: individual: PG 1244+026 - galaxies: Seyfert - X-rays: 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 LBQS 1244+0238 Sy1 12 46 35.2527826632 +02 22 08.782546368   16.57 16.37     ~ 313 0

Query : 2014MNRAS.439.1548A

Basic data :
LBQS 1244+0238 -- Seyfert 1 Galaxy
Other object types: otypes_help 		AGN (2007AJ,[HB91],...), X (2007AJ,1AXG,...), G (2020ApJ,LEDA,...), QSO (LBQS,QSO,...), Sy1 (2010A&A), UV (PG,UVQS), MIR (WISEA,WISE), SyG (2015A&A), * (Gaia), gam (INTREF), Rad (FIRST), NIR (2MASS), IR (IRAS), Opt (SDSS), var (2020ApJ)
ICRS coord. (ep=J2000) : 		12 46 35.2527826632 +02 22 08.782546368 (Optical) [ 0.0457 0.0273 90 ] A 2020yCat.1350....0G
FK4 coord. (ep=B1950 eq=1950) : 		12 44 02.0674095786 +02 38 31.476917874 [ 0.0457 0.0273 90 ]
Gal coord. (ep=J2000) : 		300.0410046476553 +65.2136244744048 [ 0.0457 0.0273 90 ]
Proper motions mas/yr : 		0.194 -0.139 [0.066 0.058 90] A 2020yCat.1350....0G
Radial velocity / Redshift / cz : 		V(km/s) 14210 [~] / z(emission) 0.048578 [~] / cz 14563.32 [~]
   (IR) C 2016ApJS..226...11S
Parallaxes (mas): 		0.0514 [0.0525] A 2020yCat.1350....0G
Angular size (arcmin): 		0.153 0.153 90 (NIR) C 2006AJ....131.1163S
Fluxes (11) :
B 16.57 [~] D 2010A&A...518A..10V
V 16.37 [~] D 2010A&A...518A..10V
G 16.234882 [0.004781] C 2020yCat.1350....0G
J 14.829 [0.063] C 2003yCat.2246....0C
H 14.025 [0.055] C 2003yCat.2246....0C
K 13.191 [0.045] C 2003yCat.2246....0C
u (AB) 16.462 [0.008] B 2020ApJS..249....3A
g (AB) 16.095 [0.004] B 2020ApJS..249....3A
r (AB) 15.865 [0.004] B 2020ApJS..249....3A
i (AB) 15.645 [0.004] B 2020ApJS..249....3A
z (AB) 15.541 [0.007] B 2020ApJS..249....3A
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Identifiers (40) :
An access of full data is available using the icon Vizier near the identifier of the catalogue

LEDA 43096 2MASX J12463527+0222088 SDSS J124635.24+022208.7 [HSN2016] J191.64+02.36
1AXG J124634+0221 NSAID v0 14301 SDSS J124635.25+022208.8 [VV2000c] J124635.3+022208
2E 1244.0+0238 PG 1244+03 SDSS J124635.24+022208.8 [VV2003c] J124635.3+022208
2E 2854 PG 1244+026 TIC 380673849 [VV2006c] J124635.3+022208
1ES 1244+02.6 PG 1244+02 UVQS J124635.24+022208.7 [VV2010c] J124635.3+022208
FIRST J124635.3+022209 QSO B1244+0238 1WGA J1246.5+0222 [VV98c] J124635.3+022208
INTREF 522 QSO B1244+026 WISEA J124635.24+022208.7 [WTW94] 1244+026
IRAS F12440+0238 RBS 1153 WISE J124635.26+022208.8 [ZEH2003] RX J1246.5+0221 2
LBQS 1244+0238 RX J1246.5+0221 2XMM J124635.3+022209 Gaia DR3 3702888019679723392
2MASS J12463525+0222089 1RXS J124635.2+022155 [HB91] 1244+026 Gaia DR2 3702888019679723392

References (313 between 1850 and 2026) (Total 313)
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 : 14    Plx : 2    PM : 2   

   

Observing logs
Herschel : 6    ISO : 2    IUE : 2    XMM : 1   

   

External archives :

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

Data at NED - NASA/IPAC Extragalactic Database : LBQS 1244+0238

Link by name to the catalogue in VizieR :

2E 2854 FIRST J124635.3+022209 IRAS F12440+0238 LBQS 1244+0238 2MASS J12463525+0222089
2MASX J12463527+0222088 PG 1244+03 PG 1244+026 PG 1244+02 1RXS J124635.2+022155
SDSS J124635.24+022208.7 SDSS J124635.25+022208.8 SDSS J124635.24+022208.8 WISEA J124635.24+022208.7 WISE J124635.26+022208.8
Gaia DR3 3702888019679723392 Gaia DR2 3702888019679723392

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