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

[FaintFuzzies]

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

[FaintFuzzies]

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

[lamperti]

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/datasearch?search_type=Photo_id&objid=172559&objname=2MASX%20J02324860%2B2017175&img_stamp=YES&hconst=73.0&omegam=0.27&omegav=0.73&corr_z=1&of=table#No13

Al

[lamperti]

Alvin,

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

http://mnras.oxfordjournals.org/content/398/2/832.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/0067-0049/121/1/131/fulltext/38507.text.html#fg9

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

[FaintFuzzies]

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.

[lamperti]

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.

[FaintFuzzies]

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

http://www.faintfuzzies.com/DownloadableObservingGuides2.html