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astronomy & astrophysics (282) 282
stars: formation (225) 225
astrophysics - astrophysics of galaxies (184) 184
ism: clouds (160) 160
infrared dark clouds (147) 147
astrophysics (140) 140
physics - astrophysics of galaxies (113) 113
galaxy astrophysics (110) 110
astrophysics - solar and stellar astrophysics (97) 97
molecular clouds (94) 94
cosmology and extragalactic astrophysics (92) 92
stars (87) 87
infrared-dark clouds (84) 84
astrophysics, cosmology and astronomy (78) 78
ism: molecules (77) 77
solar and stellar astrophysics (70) 70
clouds (69) 69
young stellar objects (64) 64
star formation (57) 57
milky-way (54) 54
ism: structure (53) 53
star-formation (51) 51
emission (50) 50
clumps (48) 48
initial conditions (48) 48
density (46) 46
ism: kinematics and dynamics (43) 43
mass (42) 42
h-ii regions (41) 41
infrared dark cloud (40) 40
evolution (38) 38
fragmentation (38) 38
galactic plane (38) 38
stars: massive (38) 38
star-forming regions (37) 37
h ii regions (35) 35
protostars (35) 35
ultracompact hii-regions (35) 35
dense cores (34) 34
physical-properties (34) 34
physics - solar and stellar astrophysics (32) 32
dust, extinction (31) 31
cores (30) 30
earth and planetary astrophysics (30) 30
massive stars (30) 30
protostellar candidates (30) 30
radio lines: ism (30) 30
star evolution (30) 30
filaments (29) 29
ism: jets and outflows (28) 28
surveys (28) 28
physics (27) 27
dust (26) 26
masers (26) 26
astronomy (25) 25
galaxy: structure (25) 25
ammonia (24) 24
forming regions (24) 24
ism: individual objects (23) 23
sciences of the universe (23) 23
galactic plane survey (22) 22
infrared: ism (22) 22
molecules (22) 22
turbulence (22) 22
hii regions (21) 21
stars: protostars (21) 21
telescopes (21) 21
clusters (20) 20
galaxies (20) 20
magnetic fields (20) 20
stars: early-type (20) 20
submillimeter: ism (20) 20
velocity (20) 20
collapse (19) 19
radio telescopes (19) 19
star clusters (19) 19
trigonometric parallaxes (19) 19
catalogs (18) 18
gravitational collapse (18) 18
infrared-dark cloud (18) 18
resolution (18) 18
astrochemistry (17) 17
dust continuum (17) 17
evolutionary (17) 17
extinction (17) 17
interstellar-medium (17) 17
magnetic-fields (17) 17
methanol masers (17) 17
physical properties (17) 17
prestellar cores (17) 17
carbon monoxide (16) 16
formations (16) 16
ism: magnetic fields (16) 16
luminosity (16) 16
massive star-formation (16) 16
protostellar cores (16) 16
comparative evaluations (15) 15
dusts (15) 15
extended green objects (15) 15
infrared (15) 15
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1. Full Text The Galactic Center Molecular Cloud Survey: II. A lack of dense gas and cloud evolution along Galactic center orbits
by Kauffmann, Jens and Pillai, Thushara and Zhang, Qizhou and Menten, Karl M and Goldsmith, Paul F and Lu, Xing and Guzmán, Andrés E and Schmiedeke, Anika
Astronomy and Astrophysics, ISSN 0004-6361, 07/2017, Volume 603, p. A90
We present the first systematic study of the density structure of clouds found in a complete sample covering all major molecular clouds in the central... 
ISM: clouds | Methods: data analysis | Stars: formation | Galaxy: center | FORMATION RATES | INITIAL CONDITIONS | methods: data analysis | MAGNETIC-FIELDS | SGR A-ASTERISK | STAR-FORMATION RATE | MASS-SIZE RELATION | stars: formation | CENTER DUST RIDGE | ASTRONOMY & ASTROPHYSICS | CENTER REGION | INFRARED DARK CLOUDS | CENTER ENVIRONMENT | Physics - Astrophysics of Galaxies
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2. Full Text Turbulent molecular clouds
by Hennebelle, Patrick and Falgarone, Edith
The Astronomy and Astrophysics Review, ISSN 0935-4956, 10/2012, Volume 20, Issue 1, pp. 1 - 58
Stars form within molecular clouds but our understanding of this fundamental process remains hampered by the complexity of the physics that drives their... 
Extraterrestrial Physics, Space Sciences | Astrophysics and Astroparticles | Clouds | Star: formation | Planetology | Instabilities | Structure | Interstellar medium: kinematics and dynamics | Physics | Astronomy, Astrophysics and Cosmology | Astronomy, Observations and Techniques | THERMALLY BISTABLE FLOW | DIFFUSE INTERSTELLAR-MEDIUM | STAR-FORMATION RATE | DENSITY PROBABILITY-DISTRIBUTION | LOG-POISSON STATISTICS | ABSORPTION-LINE SURVEY | NEUTRAL ATOMIC PHASES | SMALL-SCALE STRUCTURE | ASTRONOMY & ASTROPHYSICS | INFRARED DARK CLOUDS | INITIAL MASS FUNCTION | Turbulence | Computational fluid dynamics | Molecular clouds | Fluid flow | Evolution | Magnetic fields | Density | Astronomy | Physics - Astrophysics of Galaxies
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3. Full Text Cloud-Cloud Collision-induced Star Formation in IRAS 18223-1243
by Dewangan, L.K and Ojha, D.K and Zinchenko, I and Baug, T
Astrophysical Journal, ISSN 0004-637X, 07/2018, Volume 861, Issue 1, p. 19
In the direction of l = 17 degrees.6-19 degrees, the star-forming sites Sh 2-53 and IRAS 18223-1243 are prominently observed, and seem to be physically... 
stars: formation | ISM: clouds | dust, extinction | H II regions | ISM: individual object (IRAS 18223-1243) | MOLECULAR CLOUDS | MASS PROTOSTELLAR CANDIDATES | ISOLATING SIGNATURES | LIFETIMES | CLUSTERS | ASTRONOMY & ASTROPHYSICS | WESTERLUND 2 | INFRARED DARK CLOUDS | CONTINUUM | EMISSION | Physics - Astrophysics of Galaxies
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4. Full Text Understanding star formation in molecular clouds: II. Signatures of gravitational collapse of IRDCs
by Schneider, N and Csengeri, T and Klessen, R.S and Tremblin, P and Ossenkopf, V and Peretto, N and Simon, R and Bontemps, S and Federrath, C
Astronomy and Astrophysics, ISSN 0004-6361, 06/2015, Volume 578, p. A29
We analyse column density and temperature maps derived from Herschel dust continuum observations of a sample of prominent, massive infrared dark clouds (IRDCs)... 
ISM: clouds | Dust, extinction | DENSITY STRUCTURE | HERSCHEL VIEW | INFRARED-DARK CLOUDS | COLUMN DENSITY | dust, extinction | ASTRONOMY & ASTROPHYSICS | GALACTIC RING SURVEY | PROBABILITY-DISTRIBUTION FUNCTIONS | LINE-PROFILES | MILKY-WAY | EXTINCTION | ISOTHERMAL TURBULENCE | Slopes | Maps | Clouds | Molecular clouds | Progenitors (astrophysics) | Gravitational collapse | Density | Columns (structural) | Physics - Astrophysics of Galaxies | Physics | Astrophysics
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5. Full Text Methanol as a diagnostic tool of interstellar clouds I. Model calculations and application to molecular clouds
by Leurini, S and Schilke, P and Menten, K.M and Flower, D.R and Pottage, J.T and Xu, L.-H
Astronomy and Astrophysics, ISSN 0004-6361, 08/2004, Volume 422, Issue 2, pp. 573 - 585
We present a detailed analysis of the diagnostic properties of methanol, (CH3OH), in dense molecular clouds, made possible by the availability of new... 
Molecular processes | ISM: molecules | ISM: clouds | CORES | MULTITRANSITION | POPULATION | AMMONIA | ISM : molecules | INFRARED-DARK CLOUDS | ROTATIONAL-EXCITATION | ISM : clouds | ASTRONOMY & ASTROPHYSICS | THERMOMETER | molecular processes | CHEMISTRY | TRANSITIONS | EXCITED TORSIONAL STATES
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6. Full Text What can simulated molecular clouds tell us about real molecular clouds?
by Duarte-Cabral, A and Dobbs, C.L
Monthly Notices of the Royal Astronomical Society, ISSN 0035-8711, 03/2016, Volume 458, Issue 4, pp. 3667 - 3683
We study the properties of giant molecular clouds (GMCs) from a smoothed particle hydrodynamics simulation of a portion of a spiral galaxy, modelled at high... 
ISM: Structure | ISM: Clouds | Galaxies: ISM | Galaxies: Spiral | PHYSICAL-PROPERTIES | STAR-FORMING GALAXIES | INTERSTELLAR-MEDIUM | ISM: structure | GALACTIC PLANE SURVEY | SCALING RELATIONS | galaxies: ISM | ASTRONOMY & ASTROPHYSICS | RING SURVEY | ISM: clouds | INFRARED DARK CLOUD | MILKY-WAY | galaxies: spiral | NEARBY SPIRAL GALAXIES | Physics - Astrophysics of Galaxies
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7. Full Text The Galactic Center Molecular Cloud Survey: I. A steep linewidth-size relation and suppression of star formation
by Kauffmann, Jens and Pillai, Thushara and Zhang, Qizhou and Menten, Karl M and Goldsmith, Paul F and Lu, Xing and Guzmán, Andrés E
Astronomy and Astrophysics, ISSN 0004-6361, 07/2017, Volume 603, p. A89
The central molecular zone (CMZ; inner similar to 200 pc) of the Milky Way is a star formation (SF) environment with very extreme physical properties.... 
Stars: formation | ISM: clouds | Methods: data analysis | H II REGION | methods: data analysis | MAGNETIC-FIELDS | SGR A-ASTERISK | SAGITTARIUS-D | INFRARED-DARK CLOUDS | H2O MASERS | CONTINUUM EMISSION | YOUNG STELLAR OBJECTS | stars: formation | CENTER DUST RIDGE | ASTRONOMY & ASTROPHYSICS | MILKY-WAY | Physics - Astrophysics of Galaxies
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8. Full Text The Mass-size Relation from Clouds to Cores. II. Solar Neighborhood Clouds
by Kauffmann, J and Pillai, T and Shetty, R and Myers, P. C and Goodman, A. A
The Astrophysical Journal, ISSN 0004-637X, 06/2010, Volume 716, Issue 1, pp. 433 - 445
We measure the mass and size of cloud fragments in several molecular clouds continuously over a wide range of spatial scales (0.05 less than or similar to r/pc... 
Stars: formation | ISM: clouds | Methods: data analysis | INITIAL CONDITIONS | methods: data analysis | STRUCTURAL-ANALYSIS | STAR-FORMATION | INFRARED-DARK CLOUDS | stars: formation | GALACTIC MOLECULAR CLOUDS | FIELD EXTINCTION MAPS | PERSEUS | ASTRONOMY & ASTROPHYSICS | DENSE CORES | PIPE NEBULA | C2D LEGACY CLOUDS | Clouds | Solar neighborhood | Physics - Astrophysics of Galaxies | EVOLUTION | ASTROPHYSICS, COSMOLOGY AND ASTRONOMY | STAR EVOLUTION | APPROXIMATIONS | CALCULATION METHODS | MASS | NEBULAE | STARS | DATA ANALYSIS
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9. Full Text Low virial parameters in molecular clouds: Implications for high-mass star formation and magnetic fields
by Kauffmann, Jens and Pillai, Thushara and Goldsmith, Paul F
Astrophysical Journal, ISSN 0004-637X, 12/2013, Volume 779, Issue 2, pp. 185 - 14
Whether or not molecular clouds and embedded cloud fragments are stable against collapse is of utmost importance for the study of the star formation process.... 
stars: formation | ISM: clouds | methods: data analysis | DUST CONTINUUM | PHYSICAL-PROPERTIES | STELLAR CLUSTERS | INITIAL CONDITIONS | GRAVITATIONAL COLLAPSE | SIZE RELATION | INFRARED-DARK CLOUDS | COMPETITIVE ACCRETION | ASTRONOMY & ASTROPHYSICS | DENSE CORE POPULATION | PROTOSTELLAR CANDIDATES | Collapse | Clouds | Star formation | Molecular clouds | Fragments | Mathematical models | Stability analysis | Magnetic fields | Physics - Astrophysics of Galaxies | DENSITY | MAGNETIC FIELDS | DISTURBANCES | EVOLUTION | ASTROPHYSICS, COSMOLOGY AND ASTRONOMY | STABILITY | MASS | PERTURBATION THEORY | STARS | DATA ANALYSIS
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10. Full Text Global collapse of molecular clouds as a formation mechanism for the most massive stars
by Peretto, N and Fuller, G.A and Duarte-Cabral, A and Avison, A and Hennebelle, P and Pineda, J.E and André, Ph and Bontemps, S and Motte, F and Schneider, N and Molinari, S
Astronomy and Astrophysics, ISSN 0004-6361, 2013, Volume 555, pp. A112 - np
The relative importance of primordial molecular cloud fragmentation versus large-scale accretion still remains to be assessed in the context of massive core... 
ISM: clouds | Stars: formation | ISM: structure | ISM: kinematics and dynamics | Stars: massive | PROTOSTELLAR CLUSTER | INITIAL CONDITIONS | ARRAY OBSERVATIONS | INTERMEDIATE-MASS | EXTENDED GREEN OBJECTS | PRESTELLAR CORES | RADIATIVE-TRANSFER | stars: formation | MULTIPLE OUTFLOWS | ASTRONOMY & ASTROPHYSICS | INFRARED DARK CLOUDS | stars: massive | HI-GAL SURVEY | Collapse | Clouds | Star formation | Infrared | Molecular clouds | Progenitors (astrophysics) | Formations | Astronomy | Physics - Astrophysics of Galaxies | Physics | Astrophysics
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11. Full Text Filaments in simulations of molecular cloud formation
by Gómez, Gilberto C and Vázquez-Semadeni, Enrique
Astrophysical Journal, ISSN 0004-637X, 08/2014, Volume 791, Issue 2, pp. 124 - 13
We report on the filaments that develop self-consistently in a new numerical simulation of cloud formation by colliding flows. As in previous studies, the... 
stars: formation | ISM: clouds | evolution | GRAVITATIONAL COLLAPSE | STAR-FORMATION RATE | FORMATION EFFICIENCY | COLD NEUTRAL MEDIUM | GOULD BELT SURVEY | FREE-FALL TIME | ASTRONOMY & ASTROPHYSICS | TURBULENT MAGNETIZED CLOUDS | ACCRETION-DRIVEN TURBULENCE | INFRARED-DARK CLOUD | INITIAL MASS FUNCTION | Collapse | Accretion | Clouds | Computer simulation | Filaments | Clumps | Formations | Density | Physics - Astrophysics of Galaxies | DENSITY | VELOCITY | EVOLUTION | ASTROPHYSICS, COSMOLOGY AND ASTRONOMY | DECAY | EQUILIBRIUM | MASS | STARS | GAS FLOW | COMPUTERIZED SIMULATION
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12. Full Text The galactic center cloud G0.253+0.016: A massive dense cloud with low star formation potential
by Kauffmann, Jens and Pillai, Thushara and Zhang, Qizhou
Astrophysical Journal Letters, ISSN 2041-8205, 03/2013, Volume 765, Issue 2, pp. L35 - 6
We present the first interferometric molecular line and dust emission maps for the Galactic Center (GC) cloud G0.253+0.016, observed using CARMA and the SMA.... 
stars: formation | ISM: clouds | Galaxy: center | DUST CONTINUUM | CORES | MOLECULAR CLOUDS | SIZE RELATION | INFRARED-DARK CLOUDS | FRAGMENTATION | ASTRONOMY & ASTROPHYSICS | GAS | MILKY-WAY | EMISSION | Maps | Clouds | Star formation | Molecular clouds | Emission | Evolution | Star clusters | Density | Concentrates | Physics - Astrophysics of Galaxies | DENSITY | EVOLUTION | ASTROPHYSICS, COSMOLOGY AND ASTRONOMY | DUSTS | MASS | STARS | LINE WIDTHS | GALAXIES | GALAXY NUCLEI
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