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FTIR Laboratory Measurement of O I Spectra in the 0.77-12.5 µm Spectral Range: Rydberg States and Oscillator Strengths
Civiš, S.; Kubelík, P.; Ferus, M. +4 more
Precision laboratory measurements are presented for 135 O I lines in the infrared (including 51 lines not measured previously in the laboratory) using time-resolved Fourier transform infrared spectroscopy in the 800-13,000 cm-1 region. The fine structure of some lines is observed for the first time. Using our linelist together with all …
Molecular Gas toward the Gemini OB1 Molecular Cloud Complex. II. CO Outflow Candidates with Possible WISE Associations
Xu, Ye; Yang, Ji; Wang, Chen +4 more
We present a large-scale survey of CO outflows in the Gem OB1 molecular cloud complex and its surroundings, using the Purple Mountain Observatory Delingha 13.7 m telescope. A total of 198 outflow candidates were identified over a large area (∼58.5 square degrees), of which 193 are newly detected. Approximately 68% (134/198) are associated with the…
The Gaia-WISE Extragalactic Astrometric Catalog
Darling, Jeremy; Paine, Jennie; Truebenbach, Alexandra
The Gaia mission has detected a large number of active galactic nuclei (AGNs) and galaxies, but these objects must be identified among the thousandfold more numerous stars. Extant astrometric AGN catalogs do not have the uniform sky coverage required to detect and characterize the all-sky, low-multipole proper motion signals produced by the baryce…
DirtyGrid I: 3D Dust Radiative Transfer Modeling of Spectral Energy Distributions of Dusty Stellar Populations
Gordon, Karl D.; Misselt, Karl A.; Law, Ka-Hei
Understanding the properties of stellar populations and interstellar dust has important implications for galaxy evolution. In normal star-forming galaxies, stars and the interstellar medium dominate the radiation from ultraviolet (UV) to infrared (IR). In particular, interstellar dust absorbs and scatters UV and optical light, re-emitting the abso…
The Most Compact Bright Radio-loud AGNs. II. VLBA Observations of 10 Sources at 43 and 86 GHz
An, T.; Frey, S.; Yang, J. +10 more
Radio-loud active galactic nuclei (AGNs), hosting powerful relativistic jet outflows, provide an excellent laboratory for studying jet physics. Very long baseline interferometry (VLBI) enables high-resolution imaging on milli-arcsecond (mas) and sub-mas scales, making it a powerful tool to explore the inner jet structure, shedding light on the for…
Reducing and Analyzing the PHAT Survey with the Cloud
Williams, Benjamin F.; Olsen, Knut; Rosema, Keith +2 more
We discuss the technical challenges we faced and the techniques we used to overcome them when reducing the Panchromatic Hubble Andromeda Treasury (PHAT) photometric data set on the Amazon Elastic Compute Cloud (EC2). We first describe the architecture of our photometry pipeline, which we found particularly efficient for reducing the data in multip…
XMM-Newton Survey of Local O VII Absorption Lines in the Spectra of Galactic X-Ray Sources
Fang, Taotao; Luo, Yang; Ma, Renyi
The detection of highly ionized metal absorption lines in the X-ray spectra of the Galactic X-ray binaries (XRBs) implies the distribution of hot gas along the sightline toward the background sources. However, the origin of this hot gas is still unclear: it can arise in the hot interstellar medium (ISM), or is intrinsic to the XRBs. In this paper,…
The Gemini/HST Galaxy Cluster Project: Redshift 0.2-1.0 Cluster Sample, X-Ray Data, and Optical Photometry Catalog
Jørgensen, Inger; Chiboucas, Kristin; Nielsen, Louise D. +2 more
The Gemini/HST Galaxy Cluster Project (GCP) covers 14 z = 0.2-1.0 clusters with X-ray luminosity of {L}500≥slant {10}44 {erg} {{{s}}}-1 in the 0.1-2.4 keV band. In this paper, we provide homogeneously calibrated X-ray luminosities, masses, and radii, and we present the complete catalog of the ground-based photometr…