2012ApJ...756...73E

Query : 2012ApJ...756...73E

2012ApJ...756...73E - Astrophys. J., 756, 73 (2012/September-1)

Broadband photometric reverberation mapping of NGC 4395.

EDRI H., RAFTER S.E., CHELOUCHE D., KASPI S. and BEHAR E.

Abstract (from CDS):

We present results of broadband photometric reverberation mapping (RM) to measure the radius of the broad-line region, and subsequently the black hole mass (M_BH), in the nearby, low-luminosity active galactic nuclei NGC 4395. Using the Wise Observatory's 1 m telescope equipped with the Sloan Digital Sky Survey g', r', and i' broadband filters, we monitored NGC 4395 for nine consecutive nights and obtained three light curves each with over 250 data points. The g' and r' bands include time variable contributions from Hβ and Hα, respectively, plus continuum. The i' band is free of broad lines and covers exclusively continuum. We show that by looking for a peak in the difference between the cross-correlation and the auto-correlation functions for all combinations of filters, we can get a reliable estimate of the time lag necessary to compute M_BH. We measure the time lag for Hα to be 3.6±0.8 hr, comparable to previous studies using the line-resolved spectroscopic RM method. We argue that this lag implies a black hole mass of M_BH= (4.9±2.6)x10⁴ M_☉.

Abstract Copyright: ∼

Journal keyword(s): galaxies: active - galaxies: fundamental parameters - galaxies: Seyfert - methods: observational - quasars: individual: NGC 4395 - techniques: photometric

VizieR on-line data: <Available at CDS (J/ApJ/756/73): table1.dat>

Simbad objects: 1

Full paper

View the references in ADS

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	NGC 4395	Sy2	12 25 48.8633109888	+33 32 48.700168152	10.84	10.54	10.11	9.98		~	1286	1

Query : 2012ApJ...756...73E

Basic data :

NGC 4395 -- Seyfert 2 Galaxy

G (2014AJ,BTS,...), AGN (2012ApJ,[VV2000c],...), X (2022MNRAS,PBC,...), Sy2 (2010A&A), Sy1 (2012ApJ), QSO (2016ApJ,QSO), HI ([KOV2009],[KVB99]), SyG (2023A&A), GiC (CAIRNS), GiG ([CHM2007]), AG? (2020MNRAS), HII ([CC2002]), * (Gaia), gam (INTREF), MIR (WISE), Opt (SDSS), var (2021Sci)

12 25 48.8633109888 +33 32 48.700168152 (Optical) [ 0.1314 0.0735 90 ] A 2020yCat.1350....0G

12 23 19.8826912968 +33 49 24.950910297 [ 0.1314 0.0735 90 ]

162.0947693547792 +81.5328903047566 [ 0.1314 0.0735 90 ]

-2.667 0.697 [0.166 0.133 90] A 2020yCat.1350....0G

V(km/s) 331 [150] / z(emission) 0.00110586 [0.0005] / cz 331.5285 [150] (Opt) C 2022ApJS..261....2K

SAB C 2019MNRAS.488..590B

5.28422 2.30762 123 (Opt) B 2023ApJS..269....3M

U (AB) 10.84 [0.03] C 2014MNRAS.445..881C

B (AB) 10.54 [0.03] C 2014MNRAS.445..881C

V (AB) 10.11 [0.03] C 2014MNRAS.445..881C

R (AB) 9.98 [0.03] C 2014MNRAS.445..881C

G 16.760485 [0.011245] C 2020yCat.1350....0G

J 10.660 [0.031] C 2006AJ....131.1163S

H 10.246 [0.045] C 2006AJ....131.1163S

K 9.976 [0.058] C 2006AJ....131.1163S

u (AB) 15.356 [0.012] C 2011yCat.2306....0A

g (AB) 12.2739 [0.0004] B 2023ApJS..269....3M

r (AB) 11.8446 [0.0004] B 2023ApJS..269....3M

i (AB) 13.724 [0.003] C 2009ApJS..182..543A

z (AB) 13.8573 [0.0038] B 2023ApJS..269....3M

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Hierarchy : number of linked objects
whatever the membership probability is (see description here ) :

An access of full data is available using the icon Vizier near the identifier of the catalogue

`NGC 4395`	`PBC J1225.7+3331`	`[CC2002] NGC 4395 99`	`[RGG2013] 21`
`BTS 135`	`QSO J1225+3332`	`[CHM2007] HDC 706 J122548.92+3332482`	`[VDD93] 158`
`CAIRNS J122548.92+333248.4`	`SDSS J122548.86+333248.7`	`[CHM2007] LDC 867 J122548.92+3332482`	`[VV2000c] J122548.9+333248`
`INTREF 495`	`SWIFT J1202.5+3332`	`[HSN2016] J186.45+33.54`	`[VV2003c] J122548.9+333248`
`KUG 1223+338`	`SWIFT J1225.8+3330`	`[KOV2009] 14`	`[VV2006c] J122548.9+333248`
`LEDA 40596`	`SWIFT J1225.7+3331`	`[KRL2007b] 115`	`[VV2010c] J122548.9+333248`
`LJHY 102`	`UGC 7524`	`[KVB99] 18`	`[VV98c] J122548.9+333249`
`MaNGA 1-405438`	`UZC J122549.0+333251`	`[KVC2005] 11`	`Gaia DR3 4016037658643693696`
`MaNGA 12483-9102`	`WISE J122548.88+333248.8`	`[LLJ2000] NGC 4395 X1`	`Gaia DR2 4016037658643693696`
`2MASX J12254892+3332482`	`2XMM J122548.8+333249`	`[M98c] 122320.9+334922`
`MCG+06-27-053`	`Z 187-42`	`[MFH99] A`
`NSAID v0 89394`	`Z 1223.4+3349`	`[MI94] Sm 77`

References (1286 between 1850 and 2026) (Total 1286)
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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Archive data at HEASARC - High-Energy Astrophysics Science Archive Research Center

Data at NED - NASA/IPAC Extragalactic Database : NGC 4395

Link by name to the catalogue in VizieR :

`NGC 4395`	`KUG 1223+338`	`2MASX J12254892+3332482`	`SDSS J122548.86+333248.7`	`UGC 7524`
`WISE J122548.88+333248.8`	`Gaia DR3 4016037658643693696`	`Gaia DR2 4016037658643693696`

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