Search Publications
Detection of Extremely Broad Water Emission from the Molecular Cloud Interacting Supernova Remnant G349.7+0.2
Rho, J.; Hewitt, J. W.; Boogert, A. +2 more
We performed Herschel HIFI, PACS, and SPIRE observations toward the molecular cloud interacting supernova remnant G349.7+0.2. An extremely broad emission line was detected at 557 GHz from the ground state transition 110-101 of ortho-water. This water line can be separated into three velocity components with widths of 144, 27,…
Herschel Far-IR Observations of the Giant H II Region NGC 3603
Paresce, Francesco; Correnti, Matteo; Di Cecco, Alessandra +2 more
We observed the giant H II region around the NGC 3603 YC with the five broad bands (70, 160, 250, 350, 500 µm) of the SPIRE and PACS instruments, on board the Herschel Space Observatory. Together with what is currently known of the stellar, atomic, molecular, and warm dust components, this additional and crucial information should allow us t…
Ultraviolet/X-ray Variability and the Extended X-ray Emission of the Radio-loud Broad Absorption Line Quasar PG 1004+130
Brandt, W. N.; Luo, B.; Gallagher, S. C. +2 more
We present the results of recent Chandra, XMM-Newton, and Hubble Space Telescope observations of the radio-loud (RL), broad absorption line (BAL) quasar PG 1004+130. We compare our new observations to archival X-ray and UV data, creating the most comprehensive, high signal-to-noise, multi-epoch, spectral monitoring campaign of a RL BAL quasar to d…
Extremely Bright Submillimeter Galaxies beyond the Lupus-I Star-forming Region
Yun, M. S.; Wilner, D. J.; Shimajiri, Y. +25 more
We report detections of two candidate distant submillimeter galaxies (SMGs), MM J154506.4-344318 and MM J154132.7-350320, which are discovered in the AzTEC/ASTE 1.1 mm survey toward the Lupus-I star-forming region. The two objects have 1.1 mm flux densities of 43.9 and 27.1 mJy, and have Herschel/SPIRE counterparts as well. The Submillimeter Array…
Source Identification in the IGR J17448-3232 Field: Discovery of the Scorpius Galaxy Cluster
Wik, Daniel R.; Tomsick, John A.; Chaty, Sylvain +2 more
We use a 43 ks XMM-Newton observation to investigate the nature of sources first distinguished by a follow-up Chandra observation of the field surrounding INTEGRAL source IGR J17448-3232, which includes extended emission and a bright point source previously classified as a blazar. We establish that the extended emission is a heretofore unknown mas…
Mid-IR Enhanced Galaxies in the Coma & Virgo Clusters: Lenticulars with a High Star Formation Rate
Riguccini, L.; Amblard, A.; Temi, P. +2 more
We explore the properties of early-type galaxies (ETGs), including ellipticals (E) and lenticulars (S0), in rich environments, such as clusters of galaxies (Virgo and Coma). The L24/LK distribution of ETGs in both Virgo and Coma clusters shows that some S0s have a much larger L24/LK ratio (0.5 to ∼2 dex)…
Resolving the Merging Planck Cluster PLCK G147.3-16.6 with GISMO
van Weeren, R. J.; Bulbul, E.; Kovács, A. +6 more
The Planck satellite has recently completed an all-sky galaxy cluster survey exploiting the thermal Sunyaev-Zel’dovich (SZ) effect to locate some of the most massive systems observable. With a median redshift of < z> =0.22, the clusters found by Planck at z\gt 0.3 are proving to be exceptionally massive and/or disturbed systems. One notable …
Attenuation of Coronal Magnetic Fields in Solar Microwave Bursts
Tan, Baolin; Wu, Zhao; Huang, Guangli +3 more
Based on the observed data by the Nobeyama Radio Observatory and the nonthermal gyrosynchrotron theory, the calculated magnetic field in a loop-like radio source of the 2001 October 23 flare attenuates from hundreds to tens of Gauss, except in the region with very weak magnetic fields. Meanwhile, the viewing angle between the magnetic field and li…
Supernova Remnant Mass Accumulated during the Star Formation History of the z = 3.8 Radio Galaxies 4C41.17 and TN J2007-1316
De Breuck, C.; Drouart, G.; Rocca-Volmerange, B.
In this paper, we show that the supernova remnant (SNR) masses accumulated from core-collapse supernovae (SNe) along the star formation history of two powerful z = 3.8 radio galaxies, 4C41.17 and TN J2007-1316, reach up to ≥slant {{10}9} {{M}⊙ }, which is comparable to supermassive black hole (SMBH) masses measured from the S…
SuperModel Analysis of A1246 and J255: On the Evolution of Galaxy Clusters from High to Low Entropy States
Lapi, A.; Fusco-Femiano, R.
We present an analysis of high-quality X-ray data out to the virial radius for the two galaxy clusters A1246 and GMBCG J255.34805+64.23661 (J255) by means of our entropy-based SuperModel. For A1246 we find that the spherically averaged entropy profile of the intracluster medium (ICM) progressively flattens outward, and that a nonthermal pressure c…