Results 1 to 10 of about 4,674,041 (376)

The Molecular Cloud Lifecycle. [PDF]

Space Sci Rev, 2020
Giant molecular clouds (GMCs) and their stellar offspring are the building blocks of galaxies. The physical characteristics of GMCs and their evolution are tightly connected to galaxy evolution.
Chevance M, Kruijssen JMD, Vazquez-Semadeni E, Nakamura F, Klessen R, Ballesteros-Paredes J, Inutsuka SI, Adamo A, Hennebelle P.   +8 more
europepmc   +8 more sources

Compression and ablation of the photo-irradiated molecular cloud the Orion Bar. [PDF]

Nature, 2016
The Orion Bar is the archetypal edge-on molecular cloud surface illuminated by strong ultraviolet radiation from nearby massive stars. Our relative closeness to the Orion nebula (about 1,350 light years away from Earth) means that we can study the ...
Goicoechea JR, Pety J, Cuadrado S, Cernicharo J, Chapillon E, Fuente A, Gerin M, Joblin C, Marcelino N, Pilleri P.   +9 more
europepmc   +3 more sources

[Cii] emission from L1630 in the Orion B molecular cloud. [PDF]

Astron Astrophys, 2017
CONTEXT L1630 in the Orion B molecular cloud, which includes the iconic Horsehead Nebula, illuminated by the star system σ Ori, is an example of a photodissociation region (PDR). In PDRs, stellar radiation impinges on the surface of dense material, often
Pabst CHM, Goicoechea JR, Teyssier D, Berné O, Ochsendorf BB, Wolfire MG, Higgins RD, Riquelme D, Risacher C, Pety J, Le Petit F, Roueff E, Bron E, Tielens AGGM.   +13 more
europepmc   +3 more sources

Filament L1482 in the California molecular cloud [PDF]

, 2014
Aims. The process of gravitational fragmentation in the L1482 molecular filament of the California molecular cloud is studied by combining several complementary observations and physical estimates.
Esimbek, Jarken, He, Yu-Xin, Li, Da-Lei, Lou, Yu-Qing, Tang, Xin-Di, Wu, Gang, Zhou, Jian-Jun   +6 more
core   +2 more sources

Biogenic, urban, and wildfire influences on the molecular composition of dissolved organic compounds in cloud water [PDF]

Atmospheric Chemistry and Physics, 2017
Organic aerosol formation and transformation occurs within aqueous aerosol and cloud droplets, yet little is known about the composition of high molecular weight organic compounds in cloud water.
R. D. Cook, R. D. Cook, Y.-H. Lin, Y.-H. Lin, Y.-H. Lin, Y.-H. Lin, Z. Peng, Z. Peng, E. Boone, E. Boone, R. K. Chu, J. E. Dukett, M. J. Gunsch, W. Zhang, W. Zhang, N. Tolic, A. Laskin, A. Laskin, K. A. Pratt, K. A. Pratt   +19 more
doaj   +2 more sources

ALMA Observations of a Quiescent Molecular Cloud in the Large Magellanic Cloud [PDF]

, 2017
We present high-resolution (sub-parsec) observations of a giant molecular cloud in the nearest star-forming galaxy, the Large Magellanic Cloud. ALMA Band 6 observations trace the bulk of the molecular gas in $^{12}$CO(2-1) and high column density regions
Bandurski, Jeffrey B., Bernard, Jean-Philippe, Cao, Yixian, Chen, C. -H. Rosie, Chu, You-hua, Cui, Chaoyue, Fukui, Yasuo, Hughes, Annie, Indebetouw, Rémy, Kawamura, Akiko, Montier, Ludovic, Muller, Erik, Onishi, Toshikazu, Ott, Juergen, Paradis, Deborah, Pineda, Jorge L., Roman-Duval, Julia, Rosolowsky, Erik, Sewiło, Marta, Tokuda, Kazuki, Wojciechowski, Evan, Wong, Tony   +21 more
core   +2 more sources

Isotopic evidence for primordial molecular cloud material in metal-rich carbonaceous chondrites. [PDF]

Proc Natl Acad Sci U S A, 2016
Van Kooten EM, Wielandt D, Schiller M, Nagashima K, Thomen A, Larsen KK, Olsen MB, Nordlund Å, Krot AN, Bizzarro M.   +9 more
europepmc   +2 more sources

Missing interstellar sulfur in inventories of polysulfanes and molecular octasulfur crowns [PDF]

Nature Communications
The disparity between predicted sulfur abundances and identified reservoirs of sulfur in cold molecular clouds, also known as the sulfur depletion problem, has remained an ongoing debate over decades.
Ashanie Herath, Mason McAnally, Andrew M. Turner, Jia Wang, Joshua H. Marks, Ryan C. Fortenberry, Jorge C. Garcia-Alvarez, Samer Gozem, Ralf I. Kaiser   +8 more
doaj   +2 more sources

An Ice Age JWST inventory of dense molecular cloud ices [PDF]

Nature Astronomy, 2023
Icy grain mantles are the main reservoir of the volatile elements that link chemical processes in dark, interstellar clouds with the formation of planets and the composition of their atmospheres.
M. McClure, W. Rocha, K. Pontoppidan, N. Crouzet, L. Chu, E. Dartois, T. Lamberts, J. Noble, Y. Pendleton, G. Perotti, D. Qasim, M. Rachid, Z. L. Smith, Feng Sun, T. Beck, A. Boogert, W. A. Brown, P. Caselli, S. Charnley, H. Cuppen, H. Dickinson, M. Drozdovskaya, E. Egami, J. Erkal, H. Fraser, R. Garrod, D. Harsono, S. Ioppolo, I. Jímenez-Serra, M. Jin, J. Jørgensen, L. Kristensen, D. Lis, M. McCoustra, B. McGuire, G. Melnick, K. Öberg, M. Palumbo, T. Shimonishi, J. Sturm, E. V. van Dishoeck, H. Linnartz   +41 more
semanticscholar   +1 more source

Molecular Cloud Populations in the Context of Their Host Galaxy Environments: A Multiwavelength Perspective [PDF]

Astronomical Journal, 2022
We present a rich, multiwavelength, multiscale database built around the PHANGS–ALMA CO (2 − 1) survey and ancillary data. We use this database to present the distributions of molecular cloud populations and subgalactic environments in 80 PHANGS galaxies,
J. Sun 孙, A. Leroy, E. Rosolowsky, A. Hughes, E. Schinnerer, A. Schruba, E. Koch, G. Blanc, I. Chiang 江, B. Groves, Daizhong Liu, S. Meidt, H. Pan, J. Pety, M. Querejeta, T. Saito, K. Sandstrom, A. Sardone, A. Usero, D. Utomo, T. Williams, A. Barnes, S. Benincasa, F. Bigiel, A. Bolatto, M. Boquien, M. Chevance, D. Dale, S. Deger, E. Emsellem, S. Glover, K. Grasha, J. Henshaw, R. Klessen, K. Kreckel, J. Kruijssen, E. Ostriker, D. Thilker   +37 more
semanticscholar   +1 more source