CDS

2015A&A...578A..57S

Query : 2015A&A...578A..57S

2015A&A...578A..57S - Astronomy and Astrophysics, volume 578A, 57-57 (2015/6-1)

Monitoring the temperature and reverberation delay of the circumnuclear hot dust in NGC 4151.

SCHNUELLE K., POTT J.-U., RIX H.-W., PETERSON B.M., DE ROSA G. and SHAPPEE B.

Abstract (from CDS):

A hot, dusty torus located around the outer edge of the broad-line region of AGNs is a fundamental ingredient in unified AGN models. While the existence of circumnuclear dust around AGNs at pc-scale radii is now widely accepted, questions about the origin, evolution and long-term stability of these dust tori remain unsettled. We used reverberation mapping of the hot circumnuclear dust in the Seyfert 1 galaxy NGC 4151, to monitor its temperature and reverberation lag as a function of the varying accretion disk brightness. We carried out multiband, multiepoch photometric observations of the nucleus of NGC 4151 in the z,Y,J,H, and K bands for 29 epochs from 2010 January to 2014 June, supported by new near-infrared and optical spectroscopic observations, and archived WISE data. We see no signatures of dust destruction due to sublimation in our data, since they show no increase in the hot dust reverberation delay directly correlated with substantial accretion disk flux increases in the observed period. Instead, we find that the hot dust in NGC 4151 appears to merely heat up, and the hot dust temperature closely tracks the accretion disk luminosity variations. We find indications of a decreased reverberation delay within the observed period from τ=42.5±4.0-days in 2010 to τ=29.6±1.7-days in 2013-2014. Such a varying reverberation radius on longer timescales would explain the intrinsic scatter observed in the radius-luminosity relation of dust around AGNs. Our observations rule out that a second, larger dust component within a 100-light-day radius from the source contributes significantly to the observed near-infrared flux in this galaxy.

Abstract Copyright: ∼

Journal keyword(s): galaxies: active - galaxies: nuclei - galaxies: Seyfert - galaxies: individual: NGC 4151 - 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 - 2023 		#notes
1 NGC 4151 Sy1 12 10 32.5759813872 +39 24 21.063527532   12.18 11.48     ~ 3632 2

Query : 2015A&A...578A..57S

Basic data :
NGC 4151 -- Seyfert 1 Galaxy
Origin of the objects types :

(Ref) Object type as listed in the reference "Ref"
(acronym) Object type linked to the acronym according to the original reference
() Anterior to 2007, before we can link the objet type to a reference, or given by the CDS team in some particular cases

Other object types: 		X (2012ApJS,2A,...), Rad (B2,B3,...), G (2012A&A,CASG,...), AGN (2012ApJ,[HB91],...), * (BPS,TYC,...), MIR (AKARI,WISEA,...), Sy1 (2013ApJS), GiP (KPG,[T76]), gam (IGR,INTREF), SyG (2013ApJS), QSO ([WTW94]), GiG ([CHM2007]), V* (AAVSO), NIR (2MASS), IR (IRAS), Opt (SDSS), var (2021Sci)
Syntax of coordinates is : "ra dec (wtype) [error ellipse] quality bibcode" :
  • ra dec : right ascension and declination (unit and frame defined according to your Output Options)
    Grey values are increasing the original precision due to the computation of frame transformations
  • (wtype) : wavelength class for the origin of the coordinates (Rad, mm, IR, Optical, UV, Xray, Gam)
  • [error ellipse] : measurement uncertainty, on (ra,dec) if the positional angle is 90 degrees, on (majaxis,minaxis) otherwise (in mas at defined epoch in the original catalogue),
    position angle (in degrees North celestial pole to East)
  • quality : flag of quality
    • E ≥ 10"
    • D : 1-10" (and some old data)
    • C : 0.1-1"
    • B : 0.01-0.1" + 2MASS, Tyc
    • A : VLBI, Hipparcos
  • bibcode : bibcode of the coordinates reference
ICRS coord. (ep=J2000) : 		12 10 32.5759813872 +39 24 21.063527532 (Optical) [ 0.0700 0.0687 90 ] A 2020yCat.1350....0G
Syntax of coordinates is : "ra dec (wtype) [error ellipse] quality bibcode" :
  • ra dec : right ascension and declination (unit and frame defined according to your Output Options)
    Grey values are increasing the original precision due to the computation of frame transformations
  • (wtype) : wavelength class for the origin of the coordinates (Rad, mm, IR, Optical, UV, Xray, Gam)
  • [error ellipse] : measurement uncertainty, on (ra,dec) if the positional angle is 90 degrees, on (majaxis,minaxis) otherwise (in mas at defined epoch in the original catalogue),
    position angle (in degrees North celestial pole to East)
  • quality : flag of quality
    • E ≥ 10"
    • D : 1-10" (and some old data)
    • C : 0.1-1"
    • B : 0.01-0.1" + 2MASS, Tyc
    • A : VLBI, Hipparcos
  • bibcode : bibcode of the coordinates reference
FK4 coord. (ep=B1950 eq=1950) : 		12 08 01.0547650352 +39 41 02.265570314 [ 0.0700 0.0687 90 ]
Syntax of coordinates is : "ra dec (wtype) [error ellipse] quality bibcode" :
  • ra dec : right ascension and declination (unit and frame defined according to your Output Options)
    Grey values are increasing the original precision due to the computation of frame transformations
  • (wtype) : wavelength class for the origin of the coordinates (Rad, mm, IR, Optical, UV, Xray, Gam)
  • [error ellipse] : measurement uncertainty, on (ra,dec) if the positional angle is 90 degrees, on (majaxis,minaxis) otherwise (in mas at defined epoch in the original catalogue),
    position angle (in degrees North celestial pole to East)
  • quality : flag of quality
    • E ≥ 10"
    • D : 1-10" (and some old data)
    • C : 0.1-1"
    • B : 0.01-0.1" + 2MASS, Tyc
    • A : VLBI, Hipparcos
  • bibcode : bibcode of the coordinates reference
Gal coord. (ep=J2000) : 		155.0770628414967 +75.0630654405054 [ 0.0700 0.0687 90 ]
Syntax of proper motions is : "pm-ra pm-dec [error ellipse] quality bibcode"
  • pm-ra : mu-ra*cos(dec) (expressed in the ICRS system in mas/yr)
  • pm-dec : mu-dec (expressed in the ICRS system in mas/yr)
  • [error ellipse] : error major axis and minor axis (in mas), orientation angle (in deg)
  • quality : flag of quality (A=best quality -> E=worst quality, {� } =unknown quality)
  • bibcode : bibcode of the proper motion reference
Proper motions mas/yr : 		-0.206 -0.163 [0.071 0.084 90] A 2020yCat.1350....0G
Syntax of radial velocity (or/and redshift) is : "value [error] (wavelength) quality bibcode"
  • value : radial velocity or/and redshift (Heliocentric frame) according to your Output Options
    (redshift may be not displayed if the data value is <0 and the database inside value is a radial velocity)
  • [error] : error of the corresponding value displayed before
  • (wavelength) : wavelength range of the measurement : Rad, mm, IR, Opt, UV, Xray, Gam or  '∼'(unknown)
  • quality : flag of quality ( A=best quality -> E=worst quality, {� } =unknown quality)
  • bibcode : bibcode of the value's origin
Radial velocity / Redshift / cz : 		V(km/s) 976 [20] / z(~) 0.003262 [0.000067] / cz 977.92 [20.09]
   D 2002LEDA.........0P
Syntax of parallax is : 'value quality [error] bibcode'
  • value : parallax value
  • quality : flag of quality (A=best quality -> E=worst quality, {� } =unknown quality)
  • [error] : mean error
  • bibcode : bibcode of the parallax reference
Parallaxes (mas): 		0.2161 [0.0912] A 2020yCat.1350....0G
Syntax of morphological type is : mtype quality bibcode
  • mtype : Hubble morphological class (spirals, ellipticals, etc)
  • quality : flag of quality (A=best quality -> E=worst quality, {� } =unknown quality)
  • bibcode : bibcode of the morphological type reference
Morphological type: 		SAB_a C 2019MNRAS.488..590B
Syntax of angular size is : "maj-axis min-axis angle (wtype) quality bibcode"
  • maj-axis : major axis size (arc minutes)
  • min-axis : minor axis size (arc minutes)
  • angle : orientation angle (in degrees)
  • (wtype) : wavelength class for the origin of the angular size (Rad, mm, IR, Opt, UV, Xray, Gam)
  • quality : flag of quality of the angular size values ( A=best quality -> E=worst quality, {� } =unknown quality)
  • bibcode : bibcode of the angular size reference
Angular size (arcmin): 		6.17 4.79 50 (Opt) D 2003A&A...412...45P
Syntax of fluxes (or magnitudes) is : "filter-name (System) flux-value [error] quality MultVarFlags bibcode"
  • filter-name : U, B, V, R, I, G, J, H, K, u, g, r, i, z
  • (System) : may be AB (default is Vega)
  • flux-value : value of flux or magnitude
  • [error] : error value
  • quality : flag of quality of the flux value ( A=best quality -> E=worst quality, {� } =unknown quality)
  • MultVarFlags : Mult is zero or one char (J) for joined photometry ; Var can be zero or two chars (V[0-4])
  • bibcode : bibcode of the flux reference
Fluxes (11) :
B 12.18 [0.16] D 2000A&A...355L..27H
V 11.48 [0.11] D 2000A&A...355L..27H
G 13.378568 [0.011815] C 2020yCat.1350....0G
J 8.500 [0.020] C 2006AJ....131.1163S
H 7.788 [0.024] C 2006AJ....131.1163S
K 7.381 [0.025] C 2006AJ....131.1163S
u (AB) 13.551 [0.004] C 2009ApJS..182..543A
g (AB) 12.284 [0.006] C 2009ApJS..182..543A
r (AB) 11.613 [0.006] C 2009ApJS..182..543A
i (AB) 11.081 [0.007] C 2009ApJS..182..543A
z (AB) 10.448 [0.002] C 2009ApJS..182..543A
SIMBAD within arcmin
', {sourceSize:12, color:'#30a090'})); aladin.on('objectClicked', function(object) { var objName=object.data.MAIN_ID; aladin.showPopup(object.ra,object.dec,'',''+ objName+''); });" title="Show Simbad objects"> Overlay Simbad points in this preview
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within arcsec The VizieR photometry tool allows for easy visualization of photometry points extracted around the Simbad position from photometry-enabled catalogues in VizieR.
The search radius has to be specified by the user. It is currently limited to a maximum of 30 arcsec. It depends mostly on the precision or quality of the coordinates (SIMBAD and VizieR catalogs), the resolution of the images from which the sources were extracted, source extent, and source crowding.
Suggestions are: crowded field: 0.5 to 1.5 arcsec, 3 arcsec otherwise; uncertain coordinates (SIMBAD quality E or coordinates without reference): 5 to 30 arsec (risky!). sed-help-icon
Some important notes on this object about identifications and objects associations.
notes:

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

: 6
The count displayed here is the number of children objects.
The list obtained by clicking the button may be larger, as some children may be linked with different references or probability.

%This number is the number of distinct objets linked, by using this button, you will obtain all links (may be more than one) from that object to his children

: 22 		: 156 Display criteria :

The link on the acronym of the identifiers give access to the information for this acronym in the dictionary of nomenclature.
Identifiers (91) :
An access of full data is available using the icon Vizier near the identifier of the catalogue

NGC 4151 H 1208+397 1RXS J121031.3+392450 [BAG2012] 182.6350+39.4063
2A 1207+397 IGR J12106+3925 SDSS J121032.56+392421.1 [CHM2007] HDC 706 J121032.65+3924207
3A 1208+396 INTREF 475 SWIFT J1210.5+3924 [CHM2007] LDC 867 J121032.65+3924207
AKARI-FIS-V1 J1210324+392428 IRAS Z12080+3940 TC 195 [HB91] 1208+396
AKARI-IRC-V1 J1210321+392418 IRAS S12080+3940 TGSSADR J121032.5+392420 [KRL2007b] 107
B2 1208+39 IRAS S12079+3941 TIC 9429562 [KVC2005] 1
B2.3 1208+39 KPG 324b TXS 1208+396 [LB2005] NGC 4151 X1
B3 1208+396 KUG 1208+396A TYC 3017-939-1 [M98c] 120800.8+394111
B3VLA 1208+396 LEDA 38739 2U 1207+39 [NKB95] N4151
BPS BS 16920-0025 LJHY 30 3U 1207+39 [SMM2006b] J121032.55+392421.0
BWE 1208+3941 1M 1207+397 4U 1206+39 [T76] 57A
6C 120801+394133 2MASS J12103258+3924210 UGC 7166 [VV2000c] J121032.5+392421
7C 120801.00+394102.00 2MASX J12103265+3924207 UZC J121032.5+392421 [VV2003c] J121032.5+392421
CASG 1530 2MAXI J1210+394 VLSSr J121032.4+392422 [VV2006c] J121032.5+392421
1E 1208.0+3941 MAXI J1210+394 WB 1208+3941 [VV2010c] J121032.5+392421
2E 2603 MCG+07-25-044 WISEA J121032.57+392421.0 [VV98c] J121032.5+392421
2E 1208.0+3941 NVSS J121032+392420 WISE J121032.58+392421.2 [WTW94] 1208+396
1ES 1208+39.6 PBC J1210.5+3924 WN B1208.0+3941A [ZEH2003] RX J1210.5+3924 1
FIRST J121032.5+392420 RBS 1074 WN B1208.0+3941 AAVSO 1205+39
GB6 B1208+3941 RGB J1210.5+3924 2XMM J121032.5+392421 Gaia DR3 1535808699355081728
87GB 120800.7+394100 RGB J1210+394 XSS J12106+3927 Gaia DR1 1535808699355081728
1H 1210+393 1RXP J121032.4+392418 Z 1208.0+3941 Gaia DR2 1535808699355081728
H 1208+396 RX J1210.5+3924 Z 215-45

References (3632 between 1850 and 2023) (Total 3632)
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


velocities : 12    distance : 5    PLX : 1    PM : 2   

   

Observing logs


herschel : 9    ISO : 18    IUE : 576    XMM : 8   

   

External archives :

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

Data at NED - NASA/IPAC Extragalactic Database : NGC 4151

Link by name to the catalogue in VizieR :

NGC 4151 AKARI-FIS-V1 J1210324+392428 AKARI-IRC-V1 J1210321+392418 BWE 1208+3941 2E 2603
FIRST J121032.5+392420 IRAS Z12080+3940 IRAS S12080+3940 IRAS S12079+3941 KPG 324b
KUG 1208+396A 2MASS J12103258+3924210 2MASX J12103265+3924207 NVSS J121032+392420 1RXS J121031.3+392450
SDSS J121032.56+392421.1 TYC 3017-939-1 UGC 7166 WISEA J121032.57+392421.0 WISE J121032.58+392421.2
WN B1208.0+3941A WN B1208.0+3941 Gaia DR3 1535808699355081728 Gaia DR1 1535808699355081728 Gaia DR2 1535808699355081728

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2023.09.28-17:47:10

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