Results 111 to 120 of about 156,409 (216)

88th Annual Meeting of the Meteoritical Society 2026: Contents

Meteoritics &Planetary Science, Volume 61, Issue S1, Page S2-S47, August 2026.
wiley   +1 more source

Interstellar Abundances in the Magellanic Clouds

, 2007
Introduction Studies of the interstellar medium (ISM) in the Magellanic Clouds (MC) offer the prospect of interesting comparisons both with the ISM in our own Galaxy and with the absorption-line systems (ALS) seen in the spectra of distant QSO's ...
Daniel Welty University
core  

88th Annual Meeting of the Meteoritical Society 2026: Abstracts

Meteoritics &Planetary Science, Volume 61, Issue S1, Page S48-S551, August 2026.
wiley   +1 more source

Element Nucleosynthetic Origins from Abundance Spatial Distributions beyond the Milky Way

The Astrophysical Journal Letters
An element’s astrophysical origin should be reflected in the spatial distribution of its abundance, yielding measurably different spatial distributions for elements with different nucleosynthetic sites.
Zefeng Li, Mark R. Krumholz, Anna F. McLeod, A. Mark Swinbank, Emily Wisnioski, J. Trevor Mendel, Francesco Belfiore, Giovanni Cresci, Giacomo Venturi, Jia-Lai Kang   +9 more
doaj   +1 more source

Interstellar H₃O⁺

, 1992
The H₃O⁺ ion is a key species in the oxygen chemistry leading to H₂O, OH and O₂. Chemical models predict O₂ and H₂O to be the dominant oxygen-bearing molecules in interstellar clouds.
Phillips, T. G., Ewine F. van Dishoeck, T. G. Phillips, Jocelyn B. Keene, van Dishoeck, Ewine F., Keene, Jocelyn B.   +5 more
core   +1 more source

Interstellar Seminar course introduces college students to interstellar studies

Newsletter article in issue 30 of Have Starship, Will Travel, the newsletter of the Interstellar Research Group. It's also called IRG Newsletter.Newsletter archive: https://irg.space/newsletters-have-starship-will ...
Schneegurt, Mark A.
core   +1 more source

Potential Nitrogen Enrichment via Direct-collapse Wolf–Rayet Stars in a z = 4.7 Star-forming Galaxy

The Astrophysical Journal
We present analyses of a nitrogen-enriched star-forming galaxy, ID60001, at z = 4.6928 based on James Webb Space Telescope/NIRSpec Multi-Object Spectroscopy and NIRCam photometry. From rest-frame optical emission lines we derive the nitrogen-to-oxygen (N/
Yechi Zhang, Takahiro Morishita, Massimo Stiavelli   +2 more
doaj   +1 more source

Interstellar Carbon Dust

, 2019
In the ranking of cosmic abundance of the elements, carbon is the second element, after oxygen, able to form multiple bonds propagating the formation of a network, thus playing an essential role in the formation of nanometer- to micrometer-sized ...
Emmanuel Dartois
core   +1 more source

The LBT Yp Project. II. MODS Spectra, Physical Conditions, and Oxygen Abundances in Local Metal-poor Nebulae

The Astrophysical Journal
Empirically measuring the primordial He mass fraction, Y _p , requires a significant number of low-metallicity nebulae with direct constraints on He/H and O/H abundances.
Noah S. J. Rogers, Evan D. Skillman, Richard W. Pogge, Erik Aver, Miqaela K. Weller, Danielle A. Berg, John J. Salzer, John H. Miller Jr., Jayde Speigel, Allison L. Strom   +9 more
doaj   +1 more source

Investigating Enols Chemistry in the Interstellar Medium: Rotational Spectroscopy and Interstellar Search of (E)-1-Propenol

The Astrophysical Journal
Enols represent highly reactive intermediates toward the synthesis of complex organic molecules in the interstellar medium (ISM) and serve as key tracers of nonequilibrium chemistry driven by Galactic cosmic rays.
Michela Nonne, Mattia Melosso, Francesca Tonolo, Luca Bizzocchi, Silvia Alessandrini, Jean-Claude Guillemin, Amavi Kpoezoun, Gnon Baba, Víctor M. Rivilla, Izaskun Jiménez-Serra, Cristina Puzzarini   +10 more
doaj   +1 more source