VLA 8.4 GHz Survey

VLA 8.4 GHz Survey Results

In a preliminary A-array 1.4 GHz survey for pulsar in-beam candidates, 63 pulsars were surveyed, 1060 sources brighter than a milliJansky were imaged, and 269 potential candidates were identified, including 72 high-quality ones (for 36 pulsars).

These 269 candidates were followed-up at 8.4 GHz (X-band) with the VLA A-array, in order to verify compactness. 211 objects survive at X-band, of which 97 are "good" (compact, bright, nearby) -- an average of 1.5 candidates per source. Only 8 of 63 target pulsars have no in-beam candidates.

A summary of the best candidates is available in plain-text.
Detailed survey results are presented below. For background information about the project, see this page.

Tabulated results: Results: 1 -- Results: 2 -- Results: 3 -- Results: 4 -- Commented text file

Sample Result Format:

Source	Sub	VLA Position (A-array)		D	Flux	RMS	Maj.Ax	Min.Ax	PA
Source	Sub	RA (J2000)	Dec (J2000)	(')	(mJy)	(mJy)	(mas)	(mas)	(deg)
B1933+16	PSR	19 35 47.83002	16 16 40.0501		58.9
	010	19 35 55.52636	16 17 00.6849	1.9	2.8	0.11	107.2	52.3	36.4
	011	19 35 56.81396	16 14 09.2646	3.3	0.6	0.08	349.0	226.0	91.0
	005	19 36 55.85541	16 03 56.8765	20.7	1.8	0.08	585.8	142.6	67.0
	007	19 36 00.87528	15 56 46.3356	20.1	2.5	0.09	104.1	25.2	39.4

The pulsar position and flux is from 1.4 GHz A-array observations.
8.4 GHz positions and fluxes are reported for the inbeam candidates.
The major and minor axes are nominal deconvolved sizes reported by JMFIT at 8.4 GHz.
The source name links to the 1.4 GHz results.
The candidate subscripts link to 1.4 GHz images (not 8.4 GHz ones).
Some sources are self calibrated, and reported in a duplicate entry.

The script used to generate the tables is here.
The observe files and log files are also available: Obs 1 -- Obs 2 -- Logfile 1 -- Logfile 2.

Tabulated results: Results: 1 -- Results: 2 -- Results: 3 -- Results: 4 -- Commented text file.

Or return to the 1.4 GHz Survey page or the Pulsar VLBI page.

Shami Chatterjee
shami@astro.cornell.edu
Last Modified: 8 April 2002