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science & technology (133) 133
astronomy (107) 107
physical sciences (103) 103
exact sciences and technology (101) 101
earth, ocean, space (100) 100
astronomy & astrophysics (97) 97
astrophysics (97) 97
stellar systems. galactic and extragalactic objects and systems. the universe (89) 89
galaxy astrophysics (78) 78
cosmology and extragalactic astrophysics (72) 72
high energy astrophysical phenomena (66) 66
characteristics and properties of external galaxies and extragalactic objects (65) 65
galactic nuclei, circumnuclear matter, and bulges (64) 64
black holes (58) 58
physics - astrophysics of galaxies (55) 55
galaxies (53) 53
physics - cosmology and nongalactic astrophysics (47) 47
active galactic nuclei (41) 41
physics - high energy astrophysical phenomena (41) 41
stars & galaxies (39) 39
physics - earth and planetary astrophysics (38) 38
physics - instrumentation and methods for astrophysics (38) 38
physics - solar and stellar astrophysics (38) 38
galaxies: active (36) 36
multidisciplinary sciences (32) 32
science & technology - other topics (32) 32
galaxies: nuclei (30) 30
astrophysics - astrophysics of galaxies (27) 27
earth and planetary astrophysics (26) 26
solar and stellar astrophysics (26) 26
black hole physics (21) 21
galactic center, bar, circumnuclear matter, and bulge (21) 21
characteristics and properties of the milky way (20) 20
luminosity (20) 20
physics (19) 19
star & galaxy formation (19) 19
star formation (19) 19
general relativity and quantum cosmology (18) 18
astrophysics - cosmology and nongalactic astrophysics (17) 17
astrophysics, cosmology and astronomy (17) 17
emission (17) 17
galactic evolution (17) 17
stars (17) 17
emissions (16) 16
galaxies: individual (16) 16
observations (16) 16
galaxy nuclei (15) 15
quasars. active or peculiar galaxies, objects, and systems (15) 15
accretion (14) 14
galaxies: evolution (14) 14
quasars (14) 14
seyfert galaxies (14) 14
galaxies: ism (13) 13
research (13) 13
space telescopes (13) 13
accretion disks (12) 12
galaxies: seyfert (12) 12
mass (12) 12
evolution (11) 11
galaxies: kinematics and dynamics (11) 11
x-rays: galaxies (11) 11
astrophysics - high energy astrophysical phenomena (10) 10
feedback (10) 10
outflow (10) 10
active and peculiar galaxies (9) 9
galactic nuclei (9) 9
interstellar matter (9) 9
simulation (9) 9
galaxy: center (8) 8
interstellar medium (8) 8
milky way (8) 8
spiral galaxies (8) 8
telescopes (8) 8
velocity (8) 8
galaxies: formation (7) 7
galaxies: structure (7) 7
hydrodynamics (7) 7
infrared: galaxies (7) 7
ionization (7) 7
kinematics (7) 7
natural history (7) 7
optical properties (7) 7
photoionization (7) 7
red shift (7) 7
[phys.astr.co]physics [physics]/astrophysics [astro-ph]/cosmology and extra-galactic astrophysics [astro-ph.co] (6) 6
comparative evaluations (6) 6
correlation (6) 6
dark matter (6) 6
dust (6) 6
galaxy groups, clusters, and superclusters. large-scale structure of the universe (6) 6
gases (6) 6
ism: jets and outflows (6) 6
normal galaxies. extragalactic objects and systems (6) 6
physics, multidisciplinary (6) 6
quasars: general (6) 6
radiation (6) 6
spectra (6) 6
unidentified sources and radiation outside the solar system (6) 6
xmm (6) 6
absorption (5) 5
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