Results 131 to 140 of about 4,742 (219)

A Narrowband Emission-Line Survey of the Large Magellanic Cloud

, 2018
The Large and Small Magellanic Clouds provide sites to study the interstellar medium (ISM) and its components at all scales, from small to global. The University of Michigan / Cerro Tololo Inter-American Observatory Magellanic Cloud Emission-Line Survey (
Gordon, Alex J. R.
core  

Mapping the interstellar medium in galaxies with Herschel/SPIRE [PDF]

, 2010
The standard method of mapping the interstellar medium in a galaxy, by observing the molecular gas in the CO 1-0 line and the atomic gas in the 21-cm line, is largely limited with current telescopes to galaxies in the nearby universe.
Eales, S. A., Schulz, B., Levenson, L. R., Bradford, M., Bock, J. J.   +4 more
core  

Forecasts and Statistical Insights for Line Intensity Mapping Cross-correlations: A Case Study with 21 cm × [C ii]

The Astrophysical Journal
Intensity mapping—the large-scale mapping of selected spectral lines without resolving individual sources—is quickly emerging as an efficient way to conduct large cosmological surveys. Multiple surveys covering a variety of lines (such as the hydrogen 21
Hannah Fronenberg, Adrian Liu
doaj   +1 more source

Under Pressure: Ultraviolet Emission-line Ratios as Barometers of Active Galactic Nuclei Feedback Mechanisms

The Astrophysical Journal
Feedback from active galactic nuclei (AGN) is widely acknowledged to regulate the growth of massive galaxies, though its driving mechanisms are debated.
Elise Fuller, Sean D. Johnson, Jonathan Stern, Hsiao-Wen Chen, Ena Choi, Claude-André Faucher-Giguère, Massimo Gaspari, Andy Goulding, Jenny Greene, Timothy M. Heckman, Jennifer I-Hsiu Li, Zhuoqi Liu, Nishant Mishra, Kristina Nyland, Kate Rowlands, Gwen C. Rudie, Evan Schneider, Dominika Wylezalek, Nadia L. Zakamska   +18 more
doaj   +1 more source

Survey observations of emission-line stars in the Orion region

, 1989
Survey observations were conducted for H alpha-emission stars in the Orion region using the Kiso Schmidt telescope and partly the CTIO Curtis Schmidt telescope.
Nakano, M., Ogura, K., Yoshida, S., Wiramihardja, Suhardja D., Kogure, T.   +4 more
core  

A model for the emission-line galaxy luminosity function and flux ratios at high redshifts

We present $[{\rm{\rm O\,{\small III}}}]/\mathrm{ H}_{\rm \beta }$ emission-line flux ratio predictions for galaxies at $z \sim 7-9$ using the mappings v v5.2.0 photoionization modelling code combined with an analytic galaxy formation model.
Kewley, LJ, Sutherland, RS, Pathak, A, Wyithe, JBS   +3 more
core   +1 more source

Low intensity H-beta emission from the interstellar medium

, 1972
Pulsar pulse dispersions and low-frequency absorption of galactic and extragalactic radio sources strongly suggest that the interstellar medium is much more ionized than previously assumed.
Reynolds, R. J.
core  

Rotational Characterization of Four-Ring Polycyclic Aromatic Hydrocarbons: Toward the Detection of Fluoranthene and Cyanofluoranthene in Space. [PDF]

J Phys Chem Lett
Villar-Castro D, Cabezas C, Steber AL, Morán JR, de la Fuente S, Hussain FS, Pérez D, Lesarri A, Cernicharo J, Pérez C, Peña I.   +10 more
europepmc   +1 more source

Direct Samples of Interstellar and Interplanetary Material with IMAP. [PDF]

Space Sci Rev
Szalay JR, Provornikova E, Ayari E, Bzowski M, Christian ER, Funsten HO, Galli A, Gkioulidou M, Horányi M, Livi S, McComas DJ, Möbius E, Ogasawara K, Rahmanifard F, Rankin JS, Reisenfeld DB, Schwadron NA, Sternovsky Z, Swaczyna P, Turner D, Zank GP, Zirnstein EJ.   +21 more
europepmc   +1 more source

X-ray and γ-ray beam interstellar communication and implications for SETI. [PDF]

Sci Rep
Beveridge L, Bruhaug G.
europepmc   +1 more source