Results 71 to 80 of about 210,358 (255)

Interstellar H^+_3: possible detection of the 1_(10)→1_(11) transition of H_2D^+ [PDF]

, 1985
An interstellar line has been detected in emission at the expected submillimeter wavelength of the 1_(10)→1_(11) transition of H_(2)D^+, the deuterated version of the primary ion (H^(+)_(3)) in the favored ion-molecule reaction scheme for interstellar ...
Blake, Geoffrey A., Churchwell, E., Keene, Jocelyn, Phillips, T. G., Woods, R. Claude   +4 more
core  

Searching for an Intermediate Mass Black Hole in the Blue Compact Dwarf galaxy MRK 996 [PDF]

, 2010
The possibility is explored that accretion on an intermediate mass black hole contributes to the ionisation of the interstellar medium of the Compact Blue Dwarf galaxy MRK996.
A. Aloisi, A. Georgakakis, Abel, B. L. James, Baldwin, Barth, Barth, Barth, Begelman, Bromm, Castor, Chu, de Vaucouleurs, Dong, Elvis, Fan, Ferrarese, Filippenko, Gebhardt, Georgakakis, Gilli, Graham, Greene, Greene, Greene, Grimm, Groves, Hao, Izotov, Izotov, James, Kalberla, Kewley, Laird, Leitherer, Linden, Lodato, Lodato, Mac Low, Magdziarz, Ott, Peterson, Raymond, Sasaki, Seth, Shields, Thuan, Thuan, Thuan, Thuan, Volonteri, Volonteri, Vázquez, Weaver, White, Y. G. Tsamis   +55 more
core   +3 more sources

Discovery and Initial Investigation of a New Low Surface Brightness Planetary Nebula Candidate at High Galactic Latitude

Astronomische Nachrichten, Volume 347, Issue 3, March 2026.
ABSTRACT Planetary nebulae represent a late evolutionary phase of low‐ to intermediate‐mass stars. In this article, we present the serendipitous discovery of a previously unknown, faint potential Galactic planetary nebula (PN) in the constellation Camelopardalis, identified during a survey‐inspection, aiming at the detection of dwarf companions of the ...
W. E. Celnik, P. Köchling, S. Kotov, J. Kozok, Y. Galata, L. Magrini, A. Moiseev, M. Nischang, C. Reese, P. Remmel, P. Riepe, T. Zilch, K. Werner   +12 more
wiley   +1 more source

COBE Observations of Interstellar Line Emission

, 1996
7 pages of LaTeX with 5 included figures.
openaire   +2 more sources

Atmospheric and Deposition Responses of 10Be to Volcanic Eruptions Inferred From the Aerosol‐Climate Model ECHAM6.3‐HAM2.3‐SALSA2.0: 10Be

Geophysical Research Letters, Volume 53, Issue 4, 28 February 2026.
Abstract 10Be deposition in ice cores is widely used for solar reconstructions, but its interpretation is complicated by volcanic influences. Using the state‐of‐the‐art aerosol‐climate model ECHAM6.3‐HAM2.3‐SALSA2.0: 10Be, we assess the impacts of three major volcanic eruptions: Agung (1963), El Chichón (1982) and Pinatubo (1991). All eruptions enhance
Minjie Zheng, Raimund Muscheler, Anton Laakso, Florian Adolphi, Zhengyao Lu, Mousong Wu, Peng Chen, Qin Tao, Ulrike Lohmann   +8 more
wiley   +1 more source

The H2 Glow of a Quiescent Molecular Cloud Observed with JWST

The Astrophysical Journal Letters
We report JWST MIRI/MRS observations of the H _2 S (1) 17.04 μ m transition in two regions in the boundary of the Taurus molecular cloud. The two regions, denoted “Edge” (near the relatively sharp boundary of the ^13 CO J  = 1 → 0 emission) and “Peak ...
Paul F. Goldsmith, Shengzhe Wang, Xin Wang, Raphael Skalidis, Gary A. Fuller, Di Li, Chao-Wei Tsai, Lile Wang, Donghui Quan   +8 more
doaj   +1 more source

CII in the Interstellar Medium: Excitation by H2 Revisited

, 2013
C$^+$ is a critical constituent of many regions of the interstellar medium, as it can be a major reservoir of carbon and, under a wide range of conditions, the dominant gas coolant.
Goldsmith, Paul F., Wiesenfeld, Laurent
core   +3 more sources

The Effect of Turbulence on Nebular Emission Line Ratios [PDF]

, 2017
Motivated by the observed differences in the nebular emission of nearby and high redshift galaxies, we carry out a set of direct numerical simulations of turbulent astrophysical media exposed to a UV background.
W. Gray, E. Scannapieco
semanticscholar   +1 more source

Electronic Spectroscopy of Cold Gas‐Phase Ions in a Cryogenic Ion Trap: Vibronic States, Bonding Characteristics, and Photochemistry

Chemistry – An Asian Journal, Volume 21, Issue 4, 25 February 2026.
Recent development of cryogenic ion‐trap‐based instrumentation has extended the scope of gas‐phase laser spectroscopy to a wide variety of nonvolatile ions, including carbocations and protonated hydrocarbons, organic dyes, host‐guest complexes, micro‐hydrated ions, hypervalent ions, metal clusters, and ionic intermediates formed in solution.
Satoru Muramatsu, Masahiro Koyama, Yoshiya Inokuchi   +2 more
wiley   +1 more source

Spatially Resolved Comparison of SFRs from UV and Hα in GASP Gas-stripped Galaxies

The Astrophysical Journal
Star formation rates (SFRs) in galaxies offer a view of various physical processes across them, and are measured using various tracers, such as H α and ultraviolet (UV).
Neven Tomičić, Ariel Werle, Benedetta Vulcani, Alessandro Ignesti, Alessia Moretti, Anna Wolter, Koshy George, Bianca M. Poggianti, Marco Gullieuszik   +8 more
doaj   +1 more source