Variable Galaxies (BL Lac, blazars, AGNs, etc) list

Hey all,

I'm working on another observing guide. Here is my list (about 50+ objects) so far, it is not exhaustive, but a decent selection without going overboard on mostly stellar objects. Are there any obvious "bright" ones that I've missed? I'm also reviewing/researching various papers to better understand this class of objects.

S10721 And
IO And
3C 66A
UX Psc
XX Cet
1ES 0229+200
OD 160
J0245+1047
H0323+022
0414+009
OF 038
BW Tau
S10838 Aur
BL 0647+250
OI 158
S5 0716+71
0816.0-0736
OJ 049
OJ 287
1ES 0806+524
0954+658
1011+496
Markarian 421
AU Leo
GQ Com
ON 325
W Com
1231.7+2848
X Com
AU CVn
S10764 CVn
CC Boo
CD Boo
S10765 Boo
OQ 530
1426+428
PKS 1510-089
AP Librae
PG 1553+113
3C 345
Markarian 501
V395 Her
V396 Her
I Zw 187
Markarian 180
3C 371
1ES 1959+650
V1102 Cyg
V362 Vul
BL Lac
Markarian 509
PKS 2155-304
3C 454.3
1ES 2344+51.4

I'm down to a few that don't have mag ranges....need help is finding ranges for the following variable galaxies:

1ES 0229+200
J0245+1047
BL 0647+250
0816.0-0736
OJ 049
AU Leo
1231.7+2848
Markarian 509

Hyperleda shows a range for Markarian 509 in the optical bandwidth: 12.6- 15.65
http://leda.univ-lyon1.fr/fG.cgi?n=107&o=PGC065282

NED shows a range at different passbands for 1ES 0229+200 (I assume you wish the B and V passbands, #'s 10-13 on that list):
http://ned.ipac.caltech.edu/cgi-bin/...&of=table#No13

Al

Alvin,

Besides the 2 I listed last evening on DSF, I found this in

http://mnras.oxfordjournals.org/cont...2/832.full.pdf

1ES 0647+250 (AKA BL 0647+250)

No results of optical photometry are published for this object so far. Optical spectra, obtained with the Michigan 1.3-m and Kitt Peak 1-m telescopes (Schachter et al. 1993; Perlman et al. 1996), confirmed that this source is a BL Lac object. An HST image shows a bright point-like object at the distance z ≈ 0.3.


The source was observed during 53 nights at Abastumani Observatory. The historical light curve is the smoothest among those of the targets (Fig. 4). There is a large gap during 1999–2001 and a couple of minimum and maximum epochs are probably missed. Thus, it is hard to make conclusions with respect to variability time-scales.


For OJ 049 (aka PKS 0829+046 or PGC 139115) referenced in:

http://iopscience.iop.org/0067-0049/....text.html#fg9

it says: "It is also an extremely variable object (delta m=5.0; Angel & Stockman 1980).

Thanks Al for the references. I've been doing that as well. Sounds like I have to keep at it and dig through the papers and hope to find something. :)

I have a question regarding the HyperLEDA listings. Is that a range? I wasn't sure when I saw it last week. I clicked on the link and you are probably right as it sounds like that was the magnitude observed at that time.

For 1ES 0229+200, the V range sounds just a hair low, but at the same time looks realistic.

The HyperLEDA seems to a range as the 3 numbers listed have "Opt" next to them in the Bandwidth column, which is the magnitudes in the Optical bandwidth (if you click on 'bandn' on top and then scroll down a bit)

The ranges for the 1ES were obtained at the 428nm and 535nm (#10-13 in the link)

What may help digging is entering one or more of its Other names in whatever site you are using.

Thanks to all who look it over and made suggestions. It is now available to the public.

http://www.faintfuzzies.com/Download...ngGuides2.html