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Dark gas in the interstellar medium (ISM) is believed to not be detectable either in CO or Hi radio emission, but it is detected by other means including gamma-rays, dust emission and extinction traced outside the Galactic plane at |b|>5…

Astrophysics of Galaxies · Physics 2015-06-19 Y. Fukui , K. Torii , T. Onishi , H. Yamamoto , R. Okamoto , T. Hayakawa , K. Tachihara , H. Sano

We present WISE All-Sky mid-infrared (IR) survey detections of 55% (17/31) of the known QSOs at z>6 from a range of surveys: the SDSS, the CFHT-LS, FIRST, Spitzer and UKIDSS. The WISE catalog thus provides a substantial increase in the…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-17 Andrew Blain , Robert Assef , Daniel Stern , Chao-Wei Tsai , Peter Eisenhardt , Carrie Bridge , Dominic Benford , Tom Jarrett , Roc Cutri , Sara Petty , Jingwen Wu , Ned Wright

Line intensity mapping (LIM) is rapidly emerging as a powerful technique to study galaxy formation and cosmology in the high-redshift Universe. We present LIM estimates of select spectral lines originating from the interstellar medium (ISM)…

Cosmology and Nongalactic Astrophysics · Physics 2022-06-23 Rahul Kannan , Aaron Smith , Enrico Garaldi , Xuejian Shen , Mark Vogelsberger , Rüdiger Pakmor , Volker Springel , Lars Hernquist

(Abridged) In this second paper of the series, we present the results from optical Gemini-North GMOS-IFU and WIYN DensePak IFU spectroscopic observations of the starburst and inner wind zones of M82, with a focus on the state of the T~10^4…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-13 M. S. Westmoquette , J. S. Gallagher , L. J. Smith , G. Trancho , N. Bastian , I. S. Konstantopoulos

This work aims to measure the mass accretion rate, the accretion luminosity, and more generally the physical conditions of the warm emitting gas in the inner disk of the very low-mass star 2MASS-J16053215-1933159. We investigate the source…

We present mid-infrared to optical properties of 22 representative irregular galaxies: 18 Im, 3 BCDs, and one Sm. The mid-IR is based on images from the Spitzer Space Telescope archives. The 3.6 and 4.5 micron bands and the UBVJHK images…

Astrophysics · Physics 2008-11-26 Deidre A. Hunter , Bruce G. Elmegreen , Emily Martin

Spectroscopy in the infrared provides a means to assess important properties of the plasma in gaseous nebulae. We present some of our own work that illustrates the need for interactions between the themes of this conference - astronomical…

The first complete far-infrared spectrum (43-197um) of the Seyfert 2 galaxy NGC 1068 as observed with the LWS onboard ISO is reported. In addition to the expected ionic fine structure emission lines, the OH rotational lines at 79, 119 and…

To better characterize the global star formation (SF) activity in a galaxy, one needs to know not only the star formation rate (SFR) but also the rest-frame, far-infrared (FIR) color (e.g., the 60-to-100 $\mu$m color, $C(60/100)$] of the…

We present the wavelength and spectral resolution characterisation of the Integral Field Unit (IFU) Medium Resolution Spectrometer for the Mid-InfraRed Instrument (MIRI), to fly onboard the James Webb Space Telescope in 2014. We use data…

Instrumentation and Methods for Astrophysics · Physics 2015-05-19 J. R. Martinez-Galarza , A. M. Glauser , A. Hernan-Caballero , R. Azzollini , A. Glasse , S. Kendrew , B. Brandl , F. Lahuis

Far-infrared observations provide crucial data for the investigation and characterisation of the properties of dusty material in the Interstellar Medium (ISM), since most of its energy is emitted between ~100 and 200 um. We present the…

Observations obtained with the Far Ultraviolet Spectroscopic Explorer (FUSE) have been used to determine the column densities of D I, O I, and N I along seven sight lines that probe the local interstellar medium (LISM) at distances from 37…

We present mid-infrared maps and preliminary analysis for 61 galaxies observed with the ISOCAM instrument aboard the Infrared Space Observatory. Many of the general features of galaxies observed at optical wavelengths---spiral arms, disks,…

Astrophysics · Physics 2009-10-31 Daniel A. Dale , Nancy A. Silbermann , George Helou

ISOCAM extragalactic mid-infrared deep surveys have detected a population of strong IR emitters ten times more numerous than expected if there were no evolution from z<0.2 (IRAS) up to the maximum redshift of these galaxies (z=1.5). The…

The [OIII] 5007 A emission line is the most common tracer of warm, ionized outflows in active galactic nuclei across cosmic time. JWST newly allows us to use mid-infrared spectral features at both high spatial and spectral resolution to…

The redshifted spectral line radiation emitted from both atomic fine-structure and molecular rotational transitions in the interstellar medium (ISM) of high-redshift galaxies can be detected in the centimetre, millimetre and submillimetre…

Astrophysics · Physics 2009-10-31 Andrew W. Blain , D. T. Frayer , J. J. Bock , N. Z. Scoville

A set of diffuse interstellar clouds in the inner Galaxy within a few hundred pc of the Galactic plane has been observed at an angular resolution of ~1 arcmin combining data from the NRAO Green Bank Telescope and the Very Large Array. At…

Astrophysics of Galaxies · Physics 2015-06-15 Yurii Pidopryhora , Felix J. Lockman , John M. Dickey , Michael P. Rupen

The infrared (IR) emission plays a crucial role for understanding the star formation in galaxies hidden by dust. We first examined four estimators of the IR luminosity of galaxies, L_fir (Helou et al. 1988), L_tir (Dale et al. 2001),…

Astrophysics · Physics 2009-11-10 T. T. Takeuchi , V. Buat , J. Iglesias-Paramo , A. Boselli , D. Burgarella

This paper outlines the science case for line-intensity mapping with a space-borne instrument targeting the sub-millimeter (microwaves) to the far-infrared (FIR) wavelength range. Our goal is to observe and characterize the large-scale…

High resolution X-ray absorption spectroscopy is a powerful diagnostic tool for probing chemical and physical properties of the interstellar medium (ISM) at various phases. We present detections of K transition absorption lines from the low…

Astrophysics of Galaxies · Physics 2011-02-11 Yangsen Yao , Norbert S. Schulz , Ming F. Gu , Michael A. Nowak , Claude R. Canizares
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