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CO(J = 1-0) Imaging of M51 with CARMA and the Nobeyama 45 m Telescope
Patience, Jenny; Scoville, Nick; Koda, Jin +6 more
We report the CO(J = 1-0) observations of the Whirlpool Galaxy M51 using both the Combined Array for Research in Millimeter Astronomy (CARMA) and the Nobeyama 45 m telescope (NRO45). We describe a procedure for the combination of interferometer and single-dish data. In particular, we discuss (1) the joint imaging and deconvolution of heterogeneous…
GRB 090618: detection of thermal X-ray emission from a bright gamma-ray burst
Campana, S.; McBreen, S.; Pandey, S. B. +9 more
GRB 090618 was an extremely bright burst, detected across the electromagnetic spectrum. It has a redshift of 0.54 and a supernova (SN) was identified in ground-based photometry. We present a thorough analysis of the prompt and early afterglow emission using data from Swift, Fermi Gamma-ray Burst Monitor and ROTSE, in which we track the evolution o…
The unusual gamma-ray burst GRB 101225A explained as a minor body falling onto a neutron star
Covino, S.; D'Avanzo, P.; Campana, S. +17 more
The tidal disruption of a solar-mass star around a supermassive black hole has been extensively studied analytically and numerically. In these events, the star develops into an elongated banana-shaped structure. After completing an eccentric orbit, the bound debris falls into the black hole, forming an accretion disk and emitting radiation. The sa…
Supermassive Black Hole Mass Estimates Using Sloan Digital Sky Survey Quasar Spectra at 0.7 < z < 2
Hall, Patrick B.; Rafiee, Alireza
We present Mg II-based black hole (BH) mass estimates for 27,602 quasars with rest-frame UV spectra available in the Sloan Digital Sky Survey Data Release Three. This estimation is possible due to the existence of an empirical correlation between the radius of the broad-line region (BLR) and the continuum luminosity at 3000 Å. We regenerate this c…
Five new and three improved mutual orbits of transneptunian binaries
Buie, M. W.; Roe, H. G.; Nimmo, F. +7 more
We present three improved and five new mutual orbits of transneptunian binary systems (58534) Logos-Zoe, (66652) Borasisi-Pabu, (88611) Teharonhiawako-Sawiskera, (123509) 2000 WK 183, (149780) Altjira, 2001 QY 297, 2003 QW 111, and 2003 QY 90 based on Hubble Space Telescope and Keck II laser guide star a…
Direct observational evidence for a large transient galaxy population in groups at 0.85 < z < 1
Mulchaey, John S.; Balogh, Michael L.; Finoguenov, Alexis +7 more
We introduce our survey of galaxy groups at 0.85 < z < 1, as an extension of the Group Environment and Evolution Collaboration. Here we present the first results, based on Gemini GMOS-S nod-and-shuffle spectroscopy of seven galaxy groups selected from spectroscopically confirmed, extended XMM detections in COSMOS. We use photometric redshift…
Planck early results. XIV. ERCSC validation and extreme radio sources
Kneissl, R.; Miville-Deschênes, M. -A.; Bernard, J. -P. +215 more
Planck's all-sky surveys at 30-857 GHz provide an unprecedented opportunity to follow the radio spectra of a large sample of extragalactic sources to frequencies 2-20 times higher than allowed by past, large-area, ground-based surveys. We combine the results of the Planck Early Release Compact Source Catalog (ERCSC) with quasi-simultaneous ground-…
The origin of the Martian moons revisited
Rosenblatt, Pascal
The origin of the Martian moons, Phobos and Deimos, is still an open issue: either they are asteroids captured by Mars or they formed in situ from a circum-Mars debris disk. The capture scenario mainly relies on the remote-sensing observations of their surfaces, which suggest that the moon material is similar to outer-belt asteroid material. This …
The ATLAS3D project - V. The CO Tully-Fisher relation of early-type galaxies
Krajnović, Davor; Emsellem, Eric; Sarzi, Marc +20 more
We demonstrate here using both single-dish and interferometric observations that CO molecules are an excellent kinematic tracer, even in high-mass galaxies, allowing us to investigate for the first time the CO Tully-Fisher relation (CO-TFR) of early-type galaxies. We compare the TFRs produced using both single-dish and interferometric data and var…
Damped large amplitude transverse oscillations in an EUV solar prominence, triggered by large-scale transient coronal waves
Foullon, C.; Nakariakov, V. M.; Verwichte, E. +1 more
Aims: We investigate two successive trains of large amplitude transverse oscillations in an arched EUV prominence, observed with SoHO/EIT on the north-east solar limb on 30 July 2005. The oscillatory trains are triggered by two large scale coronal waves, associated with an X-class and a C-class flare occurring in the same remote active region…