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OOTY Lunar Occultation surveys: lists 6-10 [ CATS home ] [ Back to CATS list ] [ ftp ]


1971ApL.....9...53Swarup+ list 1 ADS
1973ApL....14...31Kapahi+ list 2 ADS
1973AJ.....78..673Kapahi+ list 3 ADS
1973AJ.....78.1023Joshi+ list 4 ADS
1974AJ.....79..515Kapahi+ list 5 ADS
1979MmASI...1....2Subrahmanya & Gopal-Krishna list 6 ADS
1979MmASI...1...14Singal+ list 7 ADS
1979MmASI...1...25Venkatakrishna & Swarup: list 8 ADS
1980MmASI...1...49Joshi & Singal: list 9 ADS
1987A&AS...69...91Singal list 10 ADS
(digitized by H. Andernach, 5/96, typed S.Trushkin)

Ooty Lunar Occultation Surveys

1979MmASI...1....2 Subrahmanya & Gopal-Krishna: Ooty list 6

Abstract

Lunar occultations of 100 radio sources observed at 327 MHz have been used to derive their position and structure. The flux densitries of the source range from 0.2 to 3.7 Jy with a median value of 0.7 Jy at 327 MHz, and a resolution of 6 arc sec has been achieved for 60 sources. Optical identifications have been attempted for sources lying outside the galatic plane (b >10^o) using the Polamar Sky survey prints. The derived structure of the double source OTL 1107+036 has enabled us to suggest its identification with a 17 mag blue galaxy instead of the previos identification with a nearby NSO based on the positional coincidence. All but 27 sources have been resolved in at least one scan. The paper also included a breif summary of the 293 sources whose occultations were observed with the Ooty radio telescope during 1970-71.
1979MmASI..14....2Singal+

Ooty Lunar Occultation observations of 65 radio sources at 327 MHz: List 7

Abstract

Lunar occultations 327 MHz are presented for 65 radio sources observed having median flux density of about 1.2 Jy. A resolution of <4 arc sec has been achieved for about half of these sources and 23 of the sources are optically identified. The sample cantains 5 flat spectrum sources, 3 of which are quasars showing flux variations at centimetre wavelengths. One of the quasars, viz. 1055+018 is also a metre-wavelength variable and it is found to be a compact double source at 327 MHz.
Ooty Lunar Occultation observations of 122 radio sources at 327 MHz: List 8

1979MmASI..25....2Venkatakrishna&Swarup

Abstract

Accurate positions, structure and identifications are presented for 122 radio sources based on their lunar occultations 327 MHz. Most of these source have flux densities less than 1 Jy at 327 MHz. About 60 % of the sources have been resolved. Optical identifications have been suggested for 23 sources. Two of the identified galaxies lie in the directions of Abell clusters. There a re two BSO's of about 18 mag in the close proximity to the radio source 0738+178. Nine sources have flat spectra and one source has a synchrotron self-absorbed spectrum. A preliminary comparison indicates that the structure of the weaker sources of flux density S_327 ~ 2 Jy is similar to that of the high-luminosityColumn 3CR sources.
1980MmASI...1...49Joshi & Singal

OOTY LUNAR OCCULTATION SURVEY: LIST 9

Mohan N. Joshi and Ashok K. Singal

In this paper we present position and structure information at 327 MHz for 240 radio sources derived from their lunar occultation observations made with the Ooty radio telescope. The flux densities of the sources lie in the range 0.2 to 4.5 Jy with a median value of 0.7 Jy. Resolutions of 6 arcsec or better have been achieved for more than 5000 of the sources. A search for optical identifications using the Palomar Sky Survey Prints was Made for all the sources and the results are presented. A brief description of the flat spectrum sources found in the Ooty Occultation Survey is given. The steps that are currently being taken to improve the sensitivity of the Ooty radio telescope are briefly described.
1987A&AS...69..91Singal: Ooty list 10 Ooty lunar occultation survey of radio sources

Abstract

We present here accurate radio positions and the arcsec angular structural infirmation for 239 radio sources. The information is derived from the lunar occultation observation made at 327 MHz using the Ooty radio telescope.
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Column description taken from list 6