1998A&AS..130..109T

Query : 1998A&AS..130..109T

1998A&AS..130..109T - Astron. Astrophys., Suppl. Ser., 130, 109-115 (1998/May-2)

BVRcIc monitoring of ON 231 during the great outburst in 1994-1997.

TOSTI G., FIORUCCI M., LUCIANI M., RIZZI N., VILLATA M., RAITERI C.M., DE FRANCESCO G., LANTERI L., CHIABERGE M., PEILA A., CAVALLONE M., SOBRITO G., MAESANO M., MASSARO E., MONTAGNI F., NESCI R., GHISELLINI G., TAKALO L.O., SILLANPAEAE A., KATAJAINEN S., HEINAEMAEKI P., NILSSON K. and PURSIMO T.

Abstract (from CDS):

We present the most continuous data base of optical multiband data ever published on the BL Lacertae object ON 231 (W Com). The data have been collected during an intensive and coordinated BVRcIc monitoring campaign carried out in the period from March 1994 to March 1997. During our campaign, the source brightness was at the highest level ever observed. The light curve shows a complex structure, characterized by the presence of three major outbursts having the observed maxima in March 1995, February 1996, and January 1997, when ON 231 reached its historical maximum (B≃14.2). Variability on time scales from a few hours up to a month have frequently been observed and the light curve seems to be the superposition of many flares with different amplitudes and time scales. The broad-band optical spectral energy distribution is characterized by a spectral slope which correlates with the flux level. In particular, the higher is the flux the flatter is the spectrum.

Abstract Copyright: ∼

Journal keyword(s): BL Lacertae objects: general - individual: ON 231

VizieR on-line data: <Available at CDS (J/A+AS/130/109): table2.dat>

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 7C 1219+2830 BLL 12 21 31.6904439888 +28 13 58.500308172   16.81 16.11 14.24   ~ 924 1

Query : 1998A&AS..130..109T

Basic data :
7C 1219+2830 -- BL Lac
Other object types: otypes_help 		Rad (2020A&A,7C,...), gam (1AGL,2EG,...), BLL (2010ApJ,[VV2000b],...), Bla (2012ApJ,[DGT2001],...), X (2009A&A,2E,...), QSO (2016A&A,QSO,...), AGN (2011ApJ,CGRaBS), V* (2018AJ,AN,...), G (2021AJ,[HSN2016]), Opt (ATO,LAMOST,...), MIR (WISEA,WISE), BL? (2021MNRAS), Bz? (2022ApJS), GiC (CAIRNS), Em* (2023ApJS), * (Gaia), NIR (2MASS)
ICRS coord. (ep=J2000) : 		12 21 31.6904439888 +28 13 58.500308172 (Optical) [ 0.0342 0.0309 90 ] A 2020yCat.1350....0G
FK4 coord. (ep=B1950 eq=1950) : 		12 19 01.1212085451 +28 30 36.649334150 [ 0.0342 0.0309 90 ]
Gal coord. (ep=J2000) : 		201.7352530890140 +83.2880250079280 [ 0.0342 0.0309 90 ]
Proper motions mas/yr : 		0.079 -0.024 [0.039 0.039 90] A 2020yCat.1350....0G
Radial velocity / Redshift / cz : 		V(km/s) 29266 [48] / z(spectroscopic) 0.10289 [0.00016] / cz 30845.6 [48.0]
   C 2009ApJS..182..543A
Fluxes (12) :
B 16.81 [~] D 2010A&A...518A..10V
V 16.11 [~] D 2010A&A...518A..10V
R 14.24 [~] D 2008ApJS..175...97H
G 15.677232 [0.014738] C 2020yCat.1350....0G
J 12.478 [0.026] C 2003yCat.2246....0C
H 11.742 [0.035] C 2003yCat.2246....0C
K 10.972 [0.021] C 2003yCat.2246....0C
u (AB) 15.877 [0.005] B 2009ApJS..182..543A
g (AB) 15.379 [0.003] B 2009ApJS..182..543A
r (AB) 15.045 [0.004] B 2009ApJS..182..543A
i (AB) 14.771 [0.004] B 2009ApJS..182..543A
z (AB) 14.568 [0.005] B 2009ApJS..182..543A
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Identifiers (91) :
An access of full data is available using the icon Vizier near the identifier of the catalogue

7C 121901.4+283038 4FGL J1221.5+2814 QSO B1219+28 [ATZ98] D115
1AGL J1222+2851 1FHL J1221.6+2814 QSO B1219+285 [CRJ2004] J1221.5+2813
AN 10.1916 3FHL J1221.5+2813 RFC J1221+2813 [DGT2001] B1219+285
ATO J185.3820+28.2329 FIRST J122131.6+281358 RGB J1221+282 [GGR94] 1219+285
B2 1219+28 FL8Y J1221.5+2814 RGB J1221.5+2813 [HB93] 1219+285
B2.2 1219+28 GB6 B1219+2830 RORF 1219+285 [HSN2016] J185.38+28.23
BWE 1219+2830 87GB 121900.8+283039 RX J1221.5+2814 [IN88] 1219+285
7C 1219+2830 GeV J1222+2837 RX J1221.5+2813 [MGL2009] BZB J1221+2813
CAIRNS J122131.69+281358.5 GLEAM J122131+281405 1RXS J122131.1+281402 [MML2015] 5BZB J1221+2813
CGRaBS J1221+2813 ICRF J122131.6+281358 S3 1219+28 [P82] 1219+285
CLASS J122131.6935+281358.496 IERS B1219+285 SDSS J122131.69+281358.4 [VV2000b] J122131.7+281358
CRATES J122131+281357 INTREF 489 TeV J1221+282 [VV2003b] J122131.7+281358
2E 2673 IVS B1219+285 TIC 285095960 [VV2006b] J122131.7+281358
2E 1219.0+2830 JVAS J1221+2813 TXS 1219+285 [VV2010b] J122131.7+281358
2EG J1222+2821 JVAS B1219+285 V* W Com [VV98b] J122131.7+281358
3EG J1222+2841 LAMOST J122131.68+281358.5 VIPS J12215+2813 [VYP98] 1219+285
EGR J1222+2845 LINEAR 3472523 VIPS 550 [W72] 1219+28
2EGS J1222+2821 MASIV J1221+2813 VRO 28.12.02 [ZEH2003] RX J1221.5+2814 2
1ES 1218+28.5 2MASS J12213168+2813585 WB 1219+2830 AAVSO 1216+28
0FGL J1221.7+2814 MITG J122132+2814 WISEA J122131.68+281358.4 Gaia DR3 4010020203303760640
1FGL J1221.5+2814 NRAO 1219+28 WISE J122131.69+281358.5 Gaia DR1 4010020199008338176
2FGL J1221.4+2814 NVSS J122131+281358 2XMM J122131.6+281358 Gaia DR2 4010020203303760640
3FGL J1221.4+2814 OHIO N 231 9Y-MST J1221+2813

References (924 between 1850 and 2026) (Total 924)
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 : 6    Var : 1    Fe/H : 1    PM : 3   

   

Observing logs
IUE : 2   

   

External archives :

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

Data at NED - NASA/IPAC Extragalactic Database : 7C 1219+2830

Link by name to the catalogue in VizieR :

BWE 1219+2830 2E 2673 3EG J1222+2841 FIRST J122131.6+281358 IERS B1219+285
2MASS J12213168+2813585 MITG J122132+2814 NVSS J122131+281358 1RXS J122131.1+281402 SDSS J122131.69+281358.4
V* W Com WISEA J122131.68+281358.4 WISE J122131.69+281358.5 Gaia DR3 4010020203303760640 Gaia DR1 4010020199008338176
Gaia DR2 4010020203303760640

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