We present new, high angular resolution (~022) MERLIN observations of neutral hydrogen (H I) absorption and λ21 cm radio continuum emission across the central ~900 pc of the ultraluminous infrared galaxy Arp 220. Spatially resolved H I absorption is detected against the morphologically complex ...
Anantharamaiah, K.R., et al.: Starburst in the ultraluminous galaxy Arp 220: Constraints from observations of radio recombination lines and continuum. Astrophys. J. 537, 613 (2000)Anantharamaiah, K. R., Viallefond, F., Mohan, N. R., Goss, W. M., & Zhao, J. H. 2000, ApJ, ...
Here we report the detection of a strong mid-infrared OH absorption line in the prototypical megamaser and ultraluminous galaxy, Arp220. We find that the power absorbed in this line alone is sufficient to pump the megamaser emission seen at radio wavelengths. Moreover, the warm, extended ...
Arp 220 glows brightest in infrared light and is an ultra-luminous infrared galaxy. Previous Hubble observations, taken in the infrared at a wavelength that looks through the dust, have uncovered the cores of the parent galaxies 1,200 light-years apart. Observations with NASA s Chandra X-ray ...
Compact OH megamaser and probable quasar activity in the galaxy Arp 220.Examines the OH megamaser emission in the galaxy Arp 220. Debate on the origin of the luminosity of galaxy Arp 220; Arp 220 as the prototype far-infrared ultraluminous galaxy....
Regardless of their nature, outflows in Arp~220 propagate in multiple directions from parsec to kiloparsec scales, potentially impacting a significant portion of the host galaxy. This contrasts with isolated systems where outflows typically follow a more collimated path or are limited to the central...
Subarcsecond international LOFAR radio images of Arp 220 at 150 MHz: A kpc-scale star forming disk surrounding nuclei with shocked outflows... E Varenius,JE Conway,I Martí-Vidal,... - 《Astronomy & Astrophysics》 被引量: 0发表: 2016年 Sub-arcsecond imaging of Arp 299-A at 150 MHz ...
Byrd Green Bank Telescope (GBT) observations of ammonia (NH) and the 1.2 cm radio continuum toward the ultraluminous infrared galaxy merger Arp 220. We detect the NH(1,1), (2,2), (3,3), (4,4), (5,5), and (6,6) inversion lines in absorption against the unresolved, (62 ± 9...
Arp 220, the closest ULIRG to Earth, has been well studied, and detailed models of $\\gamma$-ray production in this galaxy are available. They predict a rather hard $\\gamma$-ray spectrum up to several TeV. Due to its large rate of star formation, high gas density, and its close ...