Results 71 to 80 of about 1,184 (154)

Pervasive Cavity-rim Structure for Star Formation in Dwarf Irregular Galaxies

The Astrophysical Journal
Unsharp-mask images of H I emission from 36 dwarf irregular (dIrr) galaxies illustrate star formation in dispersed clouds and on the rims of large cavities. The cavities can extend for a radial scale length and typically have circular or slightly sheared
Bruce G. Elmegreen, Deidre A. Hunter
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n-Alkanes formed by methyl-methylene addition as a source of meteoritic aliphatics

Communications Chemistry
Aliphatics prevail in asteroids, comets, meteorites and other bodies in our solar system. They are also found in the interstellar and circumstellar media both in gas-phase and in dust grains.
P. Merino, L. Martínez, G. Santoro, J. I. Martínez, K. Lauwaet, M. Accolla, N. Ruiz del Arbol, C. Sánchez-Sánchez, A. Martín-Jimenez, R. Otero, M. Piantek, D. Serrate, R. Lebrón-Aguilar, J. E. Quintanilla-López, J. Mendez, P. L. De Andres, J. A. Martín-Gago   +16 more
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Interstellar Neutral Hydrogen in the Heliosphere: New Horizons Observations in the Context of Models

The Astrophysical Journal Letters
Interstellar neutral (ISN) hydrogen is the most abundant species in the outer heliosheath and the very local interstellar medium (VLISM). Charge-exchange collisions in the outer heliosheath result in filtration, reducing the ISN hydrogen density inside ...
P. Swaczyna, M. Bzowski, K. Dialynas, L. Dyke, F. Fraternale, A. Galli, J. Heerikhuisen, M. Z. Kornbleuth, D. Koutroumpa, I. Kowalska-Leszczyńska, M. A. Kubiak, A. T. Michael, H.-R. Müller, M. Opher, F. Rahmanifard   +14 more
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Forbidden transition properties in the ground-state configurations of singly ionized noble gas atoms for stellar and interstellar media [PDF]

Monthly Notices of the Royal Astronomical Society, 2015
D. K. Nandy, B. K. Sahoo
openaire   +1 more source

Mapping Galactic Dust Emission and Extinction with H I, H II, and H2

The Astrophysical Journal
Neutral hydrogen (H i ) emission closely traces the dust column density at high Galactic latitudes and is thus a powerful tool for predicting dust extinction. However, the relation between H i column density N _HI and high-latitude dust emission observed
Yun-Ting Cheng, Brandon S. Hensley, Tzu-Ching Chang, Olivier Doré   +3 more
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A High-resolution Study of the Cold Neutral Medium in and around 30 Doradus

The Astrophysical Journal
With the aim of evaluating the roles of the cold neutral medium (CNM) in the cloud-scale baryon cycle, we perform a high-resolution study of the CNM in and around the extreme star-forming region 30 Doradus (30 Dor).
Gyueun Park, Min-Young Lee, John M. Dickey, Nick M. Pingel, James Dempsey, Helga Dénes, Steven Gibson, Katie Jameson, Ian Kemp, Chang-Goo Kim, Denis Leahy, Bumhyun Lee, Callum Lynn, Yik Ki Ma, Antoine Marchal, Naomi M. McClure-Griffiths, Eric Muller, Hiep Nguyen, Snežana Stanimirović, Jacco Th. Van Loon, (The GASKAP-H I collaboration)   +20 more
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Identification of Galactic H I Counterpart of the Large [O iii] Emission Structure 1 2 Southeast of M31

The Astronomical Journal
Strottner–Drechsler–Sainty Object 1 (SDSO1) is a faint [O iii ] emission nebula spanning 1 $\mathop{.}\limits^{^\circ }5$ , discovered southeast of M31.
Tiantian Liang, Jie Wang, Tao Wang, Haibo Yuan, Ruoyi Zhang, Zhiyu Zhang, Chao-Wei Tsai, Ping Zhou, Xiaohui Sun, Hu Zou, Yingjie Jing, Chen Xu, Zhipeng Hou, Yann Sainty, Marcel Drechsler, Xavier Strottner, Ziming Liu, Qingze Chen, Zerui Liu   +18 more
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Science Opportunities for IMAP-Lo Observations of Interstellar Neutral Hydrogen and Deuterium during a Maximum of Solar Activity

The Astrophysical Journal Supplement Series
Direct-sampling observations of interstellar neutral gas, including hydrogen and deuterium, have been performed for more than one cycle of solar activity by IBEX.
M. A. Kubiak, M. Bzowski, E. Möbius, N. A. Schwadron   +3 more
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CHILES. VIII. Probing the Evolution of Average H I Content in Star-forming Galaxies over the Past 5 Gyr

The Astrophysical Journal
Utilizing the COSMOS H I Large Extragalactic Survey (CHILES) data set, we investigate the evolution of the average atomic neutral hydrogen (H I ) properties of galaxies over the continuous redshift range 0.09 
Nicholas Luber, D. J. Pisano, J. H. van Gorkom, Julia Blue Bird, Richard Dodson, Hansung B. Gim, Kelley M. Hess, Lucas R. Hunt, Danielle Lucero, Martin Meyer, Emmanuel Momjian, Min S. Yun   +11 more
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WALLABY Pilot Survey: Star Formation Enhancement and Suppression in Gas-rich Galaxy Pairs

The Astrophysical Journal
Galaxy interactions can significantly affect the star formation in galaxies, but it remains a challenge to achieve a consensus on the star formation rate (SFR) enhancement in galaxy pairs. Here, we investigate the SFR enhancement of gas-rich galaxy pairs
Qifeng Huang, Jing Wang, Xuchen Lin, Se-Heon Oh, Xinkai Chen, B. Catinella, N. Deg, H. Dénes, B. -Q. For, B. S. Koribalski, K. Lee-Waddell, J. Rhee, A. X. Shen, Li Shao, K. Spekkens, L. Staveley-Smith, T. Westmeier, O. I. Wong, A. Bosma   +18 more
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