منابع مشابه
VLA observations of 6-cm excited OH
The VLA was used to determine precise positions for 4765-MHz OH maser emission sources toward star-forming regions which had been observed about seven months earlier with the Effelsberg 100-meter telescope. The observations were successful for K3-50, DR21EX, W75N, and W49A. No line was detected toward S255: this line had decreased to less than 5 per cent of the flux density observed only seven ...
متن کاملGMRT and VLA observations of H and OH from the Seyfert galaxy Mrk 1
We present Giant Meterwave Radio Telescope (GMRT) observations of the H 21 cm line and Very Large Array (VLA) observations of the OH 18 cm line from the Seyfert 2 galaxy Mrk 1. H emission is detected from both Mrk 1 and its companion NGC 451. The H emission morphology and the velocity field of Mrk 1 are disturbed. We speculate that the nuclear activities of Mrk 1 are triggered by tidal in...
متن کاملThe ATCA / VLA OH 1612 MHz survey . III . Observations of the Northern Galactic Plane
We present observations of the region between 5 • ≤ ℓ ≤ 45 • and |b| ≤ 3 • , in the OH 1612.231 MHz line, taken from 1993 to 1995 with NRAO's Very Large Array 1 (VLA). These observations are the last part of a larger survey, covering |ℓ| ≤ 45 • and |b| ≤ 3 • , with the Australia Telescope Compact Array (ATCA) and the VLA. The region was systematically observed on a 30 ′ ×30 ′ grid in (ℓ, b) and...
متن کاملNew λ 6 cm observations of the Cygnus Loop
Radio continuum and polarization observations of the entire Cygnus Loop at λ6 cm wavelength were made with the Urumqi 25 m telescope. The λ6 cm map is analysed together with recently published maps from the Effelsberg 100 m telescope at λ21 cm and λ11 cm. The integrated flux density of the Cygnus Loop at λ6 cm is 90±9 Jy, which implies a spectral index of α = −0.40 ± 0.06 being consistent with ...
متن کاملA deep VLA survey at 6 cm in the Lockman Hole
We have obtained a deep radio image with the Very Large Array at 6 cm in the Lockman Hole. The noise level in the central part of the field is ∼11 μJy. From these data we have extracted a catalogue of 63 radio sources with a maximum distance of 10 arcmin from the field center and with peak flux density greater than 4.5 times the local rms noise. The differential source counts are in good agreem...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Monthly Notices of the Royal Astronomical Society
سال: 2004
ISSN: 0035-8711,1365-2966
DOI: 10.1111/j.1365-2966.2004.07280.x