2005MNRAS.356..336O

Query : 2005MNRAS.356..336O

2005MNRAS.356..336O - Mon. Not. R. Astron. Soc., 356, 336-342 (2005/January-1)

3C 345: the historical light curve (1967-1990) from the digitized plates of the Asiago Observatory.

OMIZZOLO A., BARBIERI C. and ROSSI C.

Abstract (from CDS):

As part of a large project to digitize the plate archives of the Italian and Vatican Astronomical Observatories, we have already performed the digitization of all available plates of the field of the quasar 3C 345. The plates, approximately 100 in number, were taken with the three telescopes of the Asiago Observatory (122 cm, 182 cm, 67/90 cm Schmidt Telescope) in the period from 1967 to 1990. We present here essentially new data, mostly in the B band, about the variability of 3C 345 and also of four other objects (three quasars - Q1, Q2 and Q3 - and the active galaxy NGC 6212) in the same field, in that period. Beyond the well-known 3C 345 itself, the other three quasars also show variability, with a range of 2.0 mag for Q1 and Q2, and 1 mag for Q3. The low-level variability detected for the nucleus of NGC 6212 is more doubtful, and should be confirmed by linear detector data.

Abstract Copyright: 2004 RAS

Journal keyword(s): astronomical data bases: miscellaneous - quasars: general - quasars: individual: 3C 345 - galaxies: Seyfert

CDS comments: Table 1, fig.1: all the QSOs are identified in SIMBAD, with Q5 = QSO B1641+398, Q6 = QSO B1641+399B, but the stars S1 to S9 are not identified.

Simbad objects: 30

goto Full paper

goto View the references in ADS

Number of rows : 30
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 QSO B1640+398 QSO 16 42 28.5228945888 +39 43 43.496675508   19.21 18.85     ~ 39 0
2 USNO-A2.0 1275-09034974 * 16 42 41.1016706472 +39 50 46.368849228   18.02 17.65     ~ 1 0
3 USNO-A2.0 1275-09035329 * 16 42 44.6975483736 +39 49 54.865480620   19.50 17.89     ~ 1 0
4 UCAC4 649-055120 * 16 42 49.2791374416 +39 46 38.460357696   16.190 15.477 15.472   ~ 1 0
5 2MASS J16425060+3946524 * 16 42 50.6088890640 +39 46 52.592296800           ~ 1 0
6 UCAC4 650-056579 * 16 42 50.8298013120 +39 50 00.309660756   17.98 16.71 16.403   ~ 2 0
7 2MASS J16425090+3949213 * 16 42 50.9198688798 +39 49 20.472426235   19.34 17.65     ~ 2 0
8 UCAC4 650-056580 * 16 42 52.8788960904 +39 48 33.610151880   16.418 15.292 15.082   ~ 8 0
9 2MASS J16425294+3948078 * 16 42 52.9570536687 +39 48 08.125989521   19.49 18.55     ~ 2 0
10 2MASS J16425370+3950456 * 16 42 53.7206782680 +39 50 45.577794876   18.95 18.34     ~ 2 0
11 2MASS J16425384+3947346 * 16 42 53.8259767728 +39 47 35.193002244           ~ 1 0
12 UCAC4 650-056582 * 16 42 54.8466469680 +39 50 00.599955864   16.048 15.304 15.232   ~ 8 0
13 3C 345 Bla 16 42 58.80997043 +39 48 36.9939552   16.81 16.59 16.84   ~ 1808 3
14 UCAC4 650-056585 * 16 43 00.0786261576 +39 49 17.877894636   17.17 16.52     ~ 4 0
15 SDSS J164300.12+394947.0 * 16 43 00.1294046064 +39 49 47.027454888   18.46 17.94     ~ 2 0
16 USNO-A2.0 1275-09036918 * 16 43 00.5089506864 +39 45 27.215179452   13.96 13.77     ~ 2 0
17 USNO-A2.0 1275-09037149 * 16 43 02.5945903056 +39 51 34.159846716   19.54 18.43     ~ 1 0
18 USNO-A2.0 1275-09037588 * 16 43 06.8962266360 +39 51 24.311751732   19.10 18.35     ~ 1 0
19 UCAC4 650-056589 * 16 43 09.7186640664 +39 48 29.960047728   16.218 15.749 15.823   ~ 1 0
20 USNO-A2.0 1275-09038119 * 16 43 12.1670457144 +39 46 12.641786076   17.01 16.51     ~ 1 0
21 USNO-A2.0 1275-09038549 * 16 43 16.9854681576 +39 47 16.787616252           ~ 1 0
22 [GKM2001] 3C 345 18 * 16 43 18.1283470800 +39 48 34.598188944   19.15 17.99     ~ 1 0
23 QSO B1641+398 QSO 16 43 19.5282341304 +39 43 39.372981744   21.09 20.82     ~ 13 0
24 NGC 6212 Sy1 16 43 23.1383858952 +39 48 23.179575348   15.0       ~ 81 0
25 QSO B1641+3958 QSO 16 43 26.1469019400 +39 53 14.335117728   18.44 18.32     ~ 39 0
26 QSO B1641+3956 QSO 16 43 27.0950171352 +39 51 25.907617800   19.32 19.06     ~ 33 0
27 QSO B1641+399B QSO 16 43 34.8466896624 +39 53 46.431942720   19.56 19.50     ~ 43 0
28 [A71] 3C 345 B * ~ ~   14.91 14.26     ~ 5 0
29 [A71] 3C 345 C * ~ ~   15.87 15.29     ~ 2 0
30 [A71] 3C 345 A * ~ ~   14.44 13.76     ~ 3 0

To bookmark this query, right click on this link: simbad:objects in 2005MNRAS.356..336O and select 'bookmark this link' or equivalent in the popup menu