Investigation of flat spectrum radio sources by the interplanetary scintillation method at 111 MHz

Details Investigation of flat spectrum radio sources by the interplanetary scintillation method at 111 MHz Investigation of flat spectrum radio sources by the interplanetary scintillation method at 111 MHz

2005-07-12

arxiv.org/abs/astro-ph/0507279v1

Astronomy and Astrophysics

Astrophysics

14 pages, 3 figures

Scientific paper

10.1051/0004-6361:20041799

Interplanetary scintillation observations of 48 of the 55 Augusto et al. (1998) flat spectrum radio sources were carried out at 111 MHz using the interplanetary scintillation method on the Large Phased Array (LPA) in Russia. Due to the large size of the LPA beam ($1\degr \times 0.5\degr$) a careful inspection of all possible confusion sources was made using extant large radio surveys: 37 of the 48 sources are not confused. We were able to estimate the scintillating flux densities of 13 sources, getting upper limits for the remaining 35. Gathering more or improving extant VLBI data on these sources might significantly improve our results. This proof-of-concept project tells us that compact ($<1''$) flat spectrum radio sources show strong enough scintillations at 111 MHz to establish/constrain their spectra (low-frequency end).

Affiliated with

Also associated with

No associations

Rating

Investigation of flat spectrum radio sources by the interplanetary scintillation method at 111 MHz does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Investigation of flat spectrum radio sources by the interplanetary scintillation method at 111 MHz, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Investigation of flat spectrum radio sources by the interplanetary scintillation method at 111 MHz will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-371507