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astronomy & astrophysics (327) 327
photon-dominated region (269) 269
ism: molecules (189) 189
astrophysics - astrophysics of galaxies (152) 152
astrophysics (145) 145
photon-dominated regions (144) 144
physics - astrophysics of galaxies (133) 133
astrochemistry (114) 114
ism: clouds (101) 101
photodissociation regions (100) 100
emission (89) 89
galaxy astrophysics (83) 83
interstellar-medium (77) 77
molecular clouds (74) 74
galaxies: ism (65) 65
physics (57) 57
infrared: ism (55) 55
ism: abundances (54) 54
star-formation (52) 52
physical conditions (50) 50
astrophysics, cosmology and astronomy (49) 49
cosmology and extragalactic astrophysics (48) 48
molecular processes (47) 47
chemistry (45) 45
stars: formation (44) 44
ism: lines and bands (43) 43
clouds (41) 41
photons (38) 38
polycyclic aromatic-hydrocarbons (38) 38
density (37) 37
galaxies (36) 36
gas (35) 35
dust (34) 34
ism: individual objects (34) 34
hii regions (33) 33
stars (33) 33
h ii regions (32) 32
ism : molecules (32) 32
solar and stellar astrophysics (32) 32
dust, extinction (31) 31
ism: structure (30) 30
physics - solar and stellar astrophysics (30) 30
radiative transfer (30) 30
spectroscopy (30) 30
astronomy (29) 29
carbon (29) 29
hydrogen (29) 29
physics - cosmology and nongalactic astrophysics (29) 29
star-forming regions (28) 28
physics - earth and planetary astrophysics (27) 27
sciences of the universe (27) 27
interstellar clouds (26) 26
molecules (26) 26
astrophysics - solar and stellar astrophysics (25) 25
excitation (25) 25
photodissociation (25) 25
photolysis (25) 25
radio lines: ism (25) 25
evolution (24) 24
physics - high energy astrophysical phenomena (24) 24
physics - instrumentation and methods for astrophysics (24) 24
spectra (24) 24
carbon monoxide (23) 23
dissociation (23) 23
earth and planetary astrophysics (23) 23
infrared-emission (23) 23
polycyclic aromatic hydrocarbons (23) 23
submillimeter: ism (23) 23
molecular data (22) 22
methods: numerical (21) 21
abundance (20) 20
h-ii regions (20) 20
star formation (20) 20
astronomy, astrophysics and cosmology (19) 19
young stellar objects (19) 19
galaxies: star formation (18) 18
high energy astrophysical phenomena (18) 18
ism: general (18) 18
protoplanetary disks (18) 18
astronomi, astrofysik och kosmologi (17) 17
c-ii (17) 17
ism: atoms (17) 17
mathematical models (17) 17
molecular gas (17) 17
ism : clouds (16) 16
ism: kinematics and dynamics (16) 16
nebula (16) 16
telescopes (16) 16
ionization (15) 15
ultraviolet radiation (15) 15
comparative evaluations (14) 14
galaxies: starburst (14) 14
interstellar matter (14) 14
orion bar (14) 14
radiation (14) 14
submillimeter observations (14) 14
turbulence (14) 14
[sdu.astr.ga]sciences of the universe [physics]/astrophysics [astro-ph]/galactic astrophysics [astro-ph.ga] (13) 13
astrophysics - cosmology and nongalactic astrophysics (13) 13
atomic carbon (13) 13
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Journal Article
Astronomy and Astrophysics, ISSN 0004-6361, 02/2017, Volume 598, p. A2
Journal Article
Astronomy & Astrophysics, ISSN 0004-6361, 02/2015, Volume 574, p. A127
CO observations in active galactic nuclei and starbursts reveal high kinetic temperatures. Those environments are thought to be very turbulent due to dynamic... 
Turbulence | ISM: clouds | ISM: molecules | Photon-dominated region | Galaxies: ISM | MILLIMETER | STAR-FORMATION | INTERSTELLAR-MEDIUM | turbulence | ROTATIONAL-EXCITATION | HCN | photon dominated region | SPECTROSCOPY | galaxies: ISM | ASTRONOMY & ASTROPHYSICS | DENSE GAS | GALAXIES | EMISSION | Equivalence | Supernovae | Heating | Heating rate | Diagnostic systems | Estimates | Astronomy
Journal Article
ASTROPHYSICAL JOURNAL, ISSN 0004-637X, 10/2014, Volume 794, Issue 1
Recent studies have confirmed the presence of buckminsterfullerene (C-60) in different interstellar and circumstellar environments. However, several aspects... 
photon-dominated region (PDR) | PHYSICAL CONDITIONS | infrared: ISM | CARBON GRAINS | WOLF-RAYET STARS | FULLERENES | DUST | EVOLUTION | ISM: lines and bands | TEMPERATURE | ISM: molecules | ASTRONOMY & ASTROPHYSICS | C-70 | astrochemistry | H BOND FORMATION | OPEN CLUSTERS
Journal Article
Astronomy and Astrophysics, ISSN 0004-6361, 2016, Volume 591, Issue July, p. A52
Journal Article
ASTRONOMY & ASTROPHYSICS, ISSN 1432-0746, 02/2017, Volume 598, p. C1
Journal Article
ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES, ISSN 0067-0049, 03/2019, Volume 241, Issue 1, p. 2
Using Green Bank Telescope radio recombination line (RRL) data, we analyze the role of leaking radiation from H II regions in maintaining the ionization of the... 
photon-dominated region (PDR) | HELIUM ABUNDANCE | CARBON | SPIRAL GALAXIES | ISM: abundances | ALPHA | DIFFUSE IONIZED-GAS | INTERSTELLAR-MEDIUM | HII regions | HYDROGEN | radio lines: ISM | PHOTODISSOCIATION REGIONS | ISM: bubbles | RADIO RECOMBINATION LINES | ASTRONOMY & ASTROPHYSICS | EMISSION
Journal Article
Astronomy and Astrophysics, ISSN 0004-6361, 06/2016, Volume 590, p. A43
Context. The interstellar medium (ISM) consists of highly ionized and neutral atomic, as well as molecular, components. Knowledge of their distribution is... 
Photon-dominated region | ISM: clouds | HII regions | photon-dominated region | ASTRONOMY & ASTROPHYSICS | GAS | HERSCHEL | ABSORPTION | EMISSION | GALACTIC PLANE SURVEY | Absorption | Clouds | Galaxies | Emission | Spectra | Excitation | Density | Line of sight | Physics - Astrophysics of Galaxies
Journal Article
ASTROPHYSICAL JOURNAL, ISSN 0004-637X, 07/2014, Volume 790, Issue 1
Journal Article
Annual Review of Astronomy and Astrophysics, ISSN 0066-4146, 1997, Volume 35, Issue 1, pp. 179 - 215
Journal Article
ASTRONOMY & ASTROPHYSICS, ISSN 1432-0746, 02/2013, Volume 550, pp. A56 - 26
Journal Article
Astronomy and Astrophysics, ISSN 0004-6361, 09/2018, Volume 617, p. A45
The central area (40"x40") of the bipolar nebula S106 was mapped in the OI line at 63.2 micron with high angular (6") and spectral resolution, using GREAT on... 
ISM: clouds | ISM: atoms | ISM: molecules | Photon-dominated region (PDR) | Accretion, accretion disks | HII regions | Galactic Astrophysics | Sciences of the Universe | Astrophysics
Journal Article
Astronomy and Astrophysics, ISSN 0004-6361, 03/2017, Volume 599, p. A20
Context. The methylidyne cation (CH+) and hydroxyl (OH) are key molecules in the warm interstellar chemistry, but their formation and excitation mechanisms are... 
ISM: lines and bands |