CSO Candidates

ira.inaf.it

CSO Candidates

Identifying Compact

Symmetric Objects from the

VLBA Imaging and

Polarization Survey

S.E. Tremblay 1 , G.B. Taylor 1 , J.F. Helmboldt 2 ,

C.D. Fassnacht 3 , and R.W. Romani 4

4 th CSS/GPS Workshop

Riccione, Italy, May 26-29 2008

1

UNM, 2 NRL, 3 CalTech, 4 Stanford


VIPS

VLBA Imaging and Polarimetry Survey (VIPS,

Helmboldt et al. 2007)

5 GHz Observations in 2006

Parent Sample:

Cosmic Lens All-Sky Survey (CLASS)

1127 sources

Lie within SDSS footprint

S > 85 mJy at 8.5 GHz

65º > Dec. > 15º


VIPS

Optical Identifications and redshifts from

SLOAN, HET, Palomar, Keck, …

Goals:

Study Evolution of Radio Sources

Study AGN environments

Characterize GLAST sources

Identify more compact supermassive

binary black holes


http://www.phys.unm.edu/~gbtaylor/VIPS/


Source Classification

Point Source

Short Jet

Long Jet

CSO Candidate

Complex

Not Detected

276

241

471

103

17

11


CSO Candidates

Type I

• Two brightest

components contain

≥ 80% flux density

• Flux densities and

sizes of these

components agree

within a factor of 2.5


CSO Candidates

Type II

• Mulit-component

Long Jets with total

length > 12 mas

whose brightest

component was ≤ 3

mas from mean of

component positions


Number

CSO Candidates

5 GHz Peak (mJy)

Brightness Distribution

CSO Candidate Peak Flux Distribution

30

25

20

15

Number

10

5

0

30 60 90 120 150 180 210 240 270 300 330 360 390 420 450

5 GHz Peak (mJy)


Core Identification

− Compact

− Flat Spectrum

− Centrally Located

Hotspot Motion

− Symmetric Radial Motion

CSO Confirmation


Tremblay et al. (In Prep.)

J07414+2706


Tremblay et al. (In Prep.)

J07414+2706


Tremblay et al. 2008 (In Press)

J11584+2450


Tremblay et al. 2008 (In Press)

J11584+2450


Tremblay et al. 2008 (In Press)

J11584+2450


Tremblay et al. (In Prep.)

J13136+5458


Tremblay et al. (In Prep.)

J13136+5458


Tremblay et al. (In Prep.)

J16449+2536


Tremblay et al. (In Prep.)

J16449+2546


More Results Soon

Questions?


Tremblay et al. 2008 (In Press)

J11584+2450


Sky

Coverage

QuickTimeª and a

TIFF (LZW) decompressor

are needed to see this picture.

Helmboldt et al.

2007


CSO Candidate Sample

Name (J2000) RA Dec Auto Class

5 GHz Peak

Flux D. Obs?

(mJy)

J07334+5605 07:33:28.6148 +56:05:41.730 Long Jet 13.5 Y

J07369+2604 07:36:58.0744 +26:04:49.888 CSO 146 Y

J07414+2706 07:41:25.7341 +27:06:45.423 Long Jet 388.5 Y

J07502+3119 07:50:12.3157 +31:19:47.512 CSO 16.6

J07542+5324 07:54:15.2181 +53:24:56.448 CSO 71.9 Y

J08116+4308 08:11:37.3640 +43:08:29.422 CSO 70.8 Y

J08170+1958 08:17:05.4948 +19:58:42.931 Long Jet 53.5 Y

J08182+6109 08:18:13.6100 +61:09:28.501 CSO 20.6 Y

J08203+5621 08:20:18.4216 +56:21:33.832 PS 77.0 Y

J08316+4608 08:31:39.8039 +46:08:00.775 CSO 43.7 Y

J08322+1832 08:32:16.0416 +18:32:12.124 CSO 269 Y

J08398+4301 08:39:52.3759 +43:01:48.820 CSO 32.9

J09062+4636 09:06:15.5367 +46:36:19.028 Complex 75.7 Y

J09097+4753 09:09:42.6359 +47:53:37.868 CSO 45.1 Y

J09115+1958 09:11:33.4606 +19:58:14.106 CSO 91.8 Y

J09128+4422 09:12:51.1269 +44:22:04.635 CSO 77.7 Y

J09267+2758 09:27:03.0137 +27:58:21.123 Long Jet 113.6 Y

J09292+2536 09:29:15.5500 +25:36:58.064 CSO 82.1

J09355+3633 09:35:31.8420 +36:33:17.548 CSO 121 Y

J09432+1702 09:43:17.2263 +17:02:18.970 CSO 180 Y

J09452+2729 09:45:15.6246 +27:29:11.351 Long Jet 43.8 Y

J10019+5540 10:01:57.7975 +55:40:47.260 Complex 33.8 Y

J10051+2403 10:05:07.8678 +24:03:37.996 CSO 102

J10066+4836 10:06:39.5762 +48:36:31.196 CSO 63.3 Y

J10225+3041 10:22:30.2884 +30:41:05.167 CSO 155

J10305+5132 10:30:35.1254 +51:32:32.161 Long Jet 43.4 Y

J10320+5610 10:32:02.5113 +56:10:56.721 CSO 60.3 Y

J10351+5628 10:35:07.0370 +56:28:46.790 CJF 399 Y

J10426+2949 10:42:36.5117 +29:49:45.150 CSO 128 Y

J10509+3430 10:50:58.1200 +34:30:10.890 CSO 141 Y

J10511+5347 10:51:06.6996 +53:47:54.930 CSO 77.0 Y

J10512+4644 10:51:15.8972 +46:44:17.359 CSO 66.2 Y

J10580+4248 10:58:00.7503 +42:48:44.162 CSO 30.1

J11106+4817 11:10:36.3247 +48:17:52.444 CSO 74.4 Y

J11113+1955 11:11:20.0674 +19:55:36.012 CSO 164 Y

J11240+2336 11:24:02.7109 +23:36:45.876 CSO 222

J11285+3243 11:28:33.0329 +32:43:22.634 CSO 42.4 Y

J11359+4258 11:35:55.9948 +42:58:44.648 CSO 170 Y

J11408+5912 11:40:49.5770 +59:12:25.161 Complex 30.9 Y

J11434+1834 11:43:26.0703 +18:34:38.373 CSO 183 Y

J11488+5924 11:48:50.3593 +59:24:56.365 CJF 79.5 Y

J11584+2450 11:58:25.7888 +24:50:17.999 Complex 188 Y

J11598+5820 11:59:48.7733 +58.20:20.306 CSO 55.3 Y

J12009+2008 12:00:57.1186 +20:08:44.625 PS 144

J12018+3919 12:01:49.9663 +39:19:11.038 CSO 36.5 Y

J12035+4632 12:03:31.7958 +46:32:55.562 Long Jet 59.0 Y

J12043+5202 12:04:18.6147 +52:02:17.617 CSO 62.2 Y

J12066+3941 12:06:37.0562 +39:41:03.739 Long Jet 181 Y

Name (J2000) RA Dec Auto Class

5 GHz Peak

Flux D. Obs?

(mJy)

J12105+6422 12:10:31.6419 +64:22:17.476 Long Jet 91.6 Y

J12152+1730 12:15:14.7218 +17:30:02.238 CSO 15.9 Y

J12201+2916 12:20:06.8242 +29:16:50.722 CSO 121

J12279+3635 12:27:58.7248 +36:35:11.819 Long Jet 233

J12342+4753 12:34:13.3311 +47:53:51.244 CSO 272 Y

J12407+2405 12:40:47.9840 +24:05:14.188 CSO 99.5 Y

J12414+5458 12:41:27.7030 +54:58:19.063 CSO 58.1 Y

J12448+4048 12:44:49.1889 +40:48:06.150 Long Jet 66.0 Y

J12477+2551 12:47:44.5375 +25:51:55.352 CSO 35.7 Y

J12545+1856 12:54:33.2701 +18:56:01.933 Long Jet 73.8

J12582+5421 12:58:15.6094 +54:21:52.125 Long Jet 38.0 Y

J13100+3403 13:10:04.4335 +34:03:09.088 Long Jet 45.6 Y

J13113+1658 13:11:23.8201 +16:58:44.222 CSO 140 Y

J13128+5548 13:12:53.1973 +55:48:13.098 CSO 68.2 Y

J13136+5458 13:13:37.8533 +54:58:23.911 CSO 163 Y

J13199+3840 13:19:59.7758 +38:40:22.430 Long Jet 46.8 Y

J13222+2645 13:22:14.9729 +26:45:46.355 CSO 18.3

J13223+4303 13:22:21.2042 +43:03:41.265 Long Jet 32.0 Y

J13253+2109 13:25:18.7089 +21:09:25.281 CSO 53.8 Y

J13262+3154 13:26:16.5142 +31:54:09.522 CSO 156 Y

J13576+4353 13:57:40.5870 +43:53:59.772 CJF 158 Y

J13586+4737 13:58:40.6651 +47:37:58.317 CJF 189 Y

J14091+3642 14:09:09.5122 +36:42:08.188 Long Jet 50.6

J14136+1509 14:13:41.6607 +15:09:39.515 CSO 93.1 Y

J14402+6108 14:40:17.8678 +61:08:42.881 CSO 26.9 Y

J14426+3042 14:42:41.5312 +30:42:32.941 CSO 40.1

J14489+5326 14:48:59.1725 +53:26:09.287 CSO 80.3 Y

J15077+5857 15:07:47.3894 +58:57:27.647 Complex 31.7 Y

J15136+2338 15:13:40.1879 +23:38:35.321 CSO 362 Y

J15159+2458 15:15:54.1696 +24:58:40.329 Complex 36.2 Y

J15186+5002 15:18:39.9636 +50:02:59.489 CSO 27.9 Y

J15451+4751 15:45:08.5282 +47:51:54.651 CJF 244 Y

J15590+5924 15:59:01.7039 +59:24:21.841 Long Jet 46.0 Y

J15594+1624 15:59:25.0704 +16:24:40.895 Long Jet 91.2 Y

J16002+1838 16:00:16.9877 +18:38:30.047 Long Jet 63.0

J16022+2418 16:02:13.8410 +24:18:37.838 CSO 89.2 Y

J16061+5521 16:06:07.6232 +55:21:35.425 CSO 16.3 Y

J16087+1511 16:08:44.1166 +15:11:30.717 CSO 50.2 Y

J16092+2641 16:09:13.3196 +26:41:29.042 CSO 440

J16323+2643 16:32:21.0508 +26:43:53.457 CSO 63.0 Y

J16449+2536 16:49:59.1097 +16:03:34.398 Long Jet 42.9 Y

J16538+3503 16:53:53.1597 +35:03:27.037 Long Jet 62.7 Y

J16559+5430 16:55:59.1867 +54:30:04.518 CSO 36.7 Y

J17003+3830 17:00:19.9678 +38:30:34.140 Long Jet 76.3 Y

J17073+4204 17:07:22.5157 +42:04:25.526 CSO 70.4 Y

J17233+3417 17:23:20.7981 +34:17:57.979 CSO 74.7 Y

J17309+3811 17:30:54.1146 +38:11:50.870 CSO 52.7


Follow-up Observations

Mulit-Frequency Follow-up

5, 8, and 15 GHz VLBA Observations

Look for large scale emission when

appropriate (VLA)

Eventually investigate low frequency

morphology (LWA)

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