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Far-Infrared and Submillimeter Emission from Galactic and Extragalactic Photodissociation Regions
Photodissociation region (PDR) models are computed over a wide range of physical conditions, from those appropriate to giant molecular clouds illuminated by the interstellar radiation field to the
X-Ray Spectroscopic Evidence for Intermediate-Mass Black Holes: Cool Accretion Disks in Two Ultraluminous X-Ray Sources
We have analyzed an XMM-Newton observation of the nearby spiral galaxy NGC 1313, which contains two ultraluminous X-ray (ULX) sources. We measure isotropic luminosities of LX = 2.0 × 1040 ergs s-1
The mass assembly history of field galaxies: detection of an evolving mass limit for star forming galaxies
We characterize the mass-dependent evolution of more than 8000 galaxies using spectroscopic redshifts from the DEEP2 Galaxy Redshift Survey in the range 0.4 < z < 1.4 and stellar masses calculated
Photoionization modeling and the K lines of iron
We calculate the efficiency of iron K line emission and iron K absorption in photoionized models using a new set of atomic data. These data are more comprehensive than those previously applied to the
Chandra Snapshot Observations of Low-Luminosity Active Galactic Nuclei with a Compact Radio Source
The results of Chandra snapshot observations of 11 low-ionization nuclear emission-line regions (LINERs), three low-luminosity Seyfert galaxies, and one H II-LINER transition object are presented.
Dynamics of Line-driven Disk Winds in Active Galactic Nuclei
We present the results of axisymmetric time-dependent hydrodynamic calculations of line-driven winds from accretion disks in active galactic nuclei (AGNs). We assume the disk is flat, Keplerian,
Stellar and Total Baryon Mass Fractions in Groups and Clusters Since Redshift 1
We investigate if the discrepancy between estimates of the total baryon mass fraction obtained from observations of the cosmic microwave background (CMB) and of galaxy groups/clusters persists when a
A long hard look at MCG–6-30-15 with XMM-Newton
We present the first results from a 325-ks observation of the Seyfert 1 galaxy MCG–6-30-15 with XMM-Newton and BeppoSAX. The strong, broad, skewed iron line is clearly detected and is well
X-Ray Properties of LINERs and Low-Luminosity Seyfert Galaxies Observed with ASCA. I. Observations and Results
This paper presents a comprehensive study of the X-ray properties of low-ionization nuclear emission-line regions (LINERs) and low-luminosity Seyfert galaxies based on observations obtained with the
The VLT-FLAMES survey of massive stars: surface chemical compositions of B-type stars in the Magellanic Clouds
We present an analysis of high-resolution FLAMES spectra of approximately 50 early B-type stars in three young clusters at different metallicities, NGC 6611 in the Galaxy, N 11 in the Large