| active galactic nucleus | AGN | 1075 | 48 | 1.006001 | 0204147,0204174,etc |
| spectral energy distribution | SED | 327 | 37 | 1.001094 | 0204189,0204179,etc |
| cosmic microwave background | CMB | 484 | 25 | 2.003113 | 0204100,0204115,etc |
| interstellar medium | ISM | 300 | 24 | 2.001698 | 0204136,0204528,etc |
| nasa/ipac extragalactic database | NED | 33 | 22 | 1.000156 | 0204247,0204343,etc |
| point spread function | PSF | 276 | 22 | 2.001542 | 0204317,0204140,etc |
| initial mass function | IMF | 159 | 19 | 2.001373 | 0204528,0204399,etc |
| cold dark matter | CDM | 101 | 16 | 2.000787 | 0204100,0204178,etc |
| star formation rate | SFR | 279 | 14 | 1.005593 | 0204528,0204241,etc |
| near infrared | NIR | 190 | 14 | 2.001729 | 0204317,0204060,etc |
| supernova | SN | 723 | 13 | 2.012563 | 0204136,0204528,etc |
| equation of state | EOS | 170 | 13 | 2.002828 | 0204159,0204331,etc |
| full width at half maximum | FWHM | 64 | 12 | 2.000395 | 0204415,0204171,etc |
| infrared | IR | 428 | 12 | 2.004871 | 0204241,0204255,etc |
| gamma ray burst | GRB | 316 | 11 | 2.005016 | 0204223,0204008,etc |
| cataclysmic variable | CV | 119 | 10 | 2.001441 | 0204189,0204128,etc |
| hubble space telescope | HST | 98 | 10 | 2.001096 | 0204189,0204528,etc |
| supernova remnant | SNR | 167 | 10 | 2.002873 | 0204415,0204427,etc |
| far infrared | FIR | 139 | 10 | 1.001694 | 0204528,0204241,etc |
| asymptotic giant branch | AGB | 68 | 10 | 2.001287 | 0204528,0204399,etc |
| field of view | FOV | 57 | 10 | 1.000781 | 0204258,0204404,etc |
| neutron star | NS | 384 | 10 | 1.008521 | 0204291,0204508,etc |
| sloan digital sky survey | SDSS | 219 | 9 | 2.004101 | 0204436,0204258,etc |
| signal to noise ratio | SNR | 51 | 9 | 1.000854 | 0204464,0204340,etc |
| signal to noise | S/N | 44 | 8 | 1.001146 | 0204339,0204101,etc |
| low mass x ray binary | LMXB | 45 | 8 | 2.001743 | 0204254,0204113,etc |
| intergalactic medium | IGM | 96 | 8 | 1.001158 | 0204389,0204462,etc |
| color magnitude diagram | CMD | 62 | 7 | 1.000445 | 0204528,0204192,etc |
| equivalent width | EW | 48 | 7 | 1.000535 | 0204464,0204162,etc |
| red giant branch | RGB | 118 | 7 | 2.001242 | 0204399,0204455,etc |
| small magellanic cloud | SMC | 117 | 7 | 2.003349 | 0204178,0204026,etc |
| black hole | BH | 278 | 7 | 2.005729 | 0204254,0204269,etc |
| proportional counter array | PCA | 44 | 7 | 2.000843 | 0204300,0204368,etc |
| adaptive optics | AO | 75 | 7 | 2.00186 | 0204114,0204303,etc |
| low surface brightness | LSB | 45 | 6 | 2.000466 | 0204136,0204343,etc |
| very large array | VLA | 20 | 6 | 1.000348 | 0204528,0204088,etc |
| national radio astronomy observatory | NRAO | 10 | 6 | 1.000189 | 0204528,0204088,etc |
| horizontal branch | HB | 442 | 6 | 2.004306 | 0204399,0204362,etc |
| globular cluster | GC | 168 | 6 | 2.004116 | 0204420,0204291,etc |
| quasi periodic oscillation | QPO | 129 | 6 | 1.001447 | 0204254,0204368,etc |
| cosmic ray | CR | 247 | 6 | 2.004538 | 0204389,0204205,etc |
| young stellar object | YSO | 51 | 6 | 1.000923 | 0204392,0204417,etc |
| intracluster medium | ICM | 58 | 6 | 1.001614 | 0204022,0204204,etc |
| two dimensional | 2D | 173 | 6 | 2.001842 | 0204154,0204149,etc |
| sunyaev zel'dovich | SZ | 88 | 5 | 1.001376 | 0204100,0204017,etc |
| the red giant branch | TRGB | 117 | 5 | 2.003005 | 0204528,0204192,etc |
| ultraviolet | UV | 255 | 5 | 2.00444 | 0204317,0204392,etc |
| star formation history | SFH | 54 | 5 | 2.001352 | 0204399,0204316,etc |
| broad line region | BLR | 75 | 5 | 2.001821 | 0204171,0204303,etc |
| interstellar scintillation | ISS | 57 | 5 | 2.004477 | 0204093,0204141,etc |
| space telescope imaging spectrograph | STIS | 75 | 5 | 2.001105 | 0204498,0204304,etc |
| position angle | PA | 94 | 5 | 2.001968 | 0204138,0204184,etc |
| inverse compton | IC | 85 | 5 | 2.003349 | 0204141,0204406,etc |
| charge transfer efficiency | CTE | 17 | 5 | 1.000275 | 0204234,0204057,etc |
| probability distribution function | PDF | 101 | 4 | 2.003283 | 0204136,0204338,etc |
| large magellanic cloud | LMC | 203 | 4 | 2.005774 | 0204415,0204096,etc |
| australia telescope compact array | ATCA | 40 | 4 | 2.002121 | 0204415,0204241,etc |
| advanced ccd imaging spectrometer | ACIS | 91 | 4 | 2.001957 | 0204147,0204252,etc |
| digitized sky survey | DSS | 20 | 4 | 2.000937 | 0204354,0204526,etc |
| full width half maximum | FWHM | 78 | 4 | 1.003925 | 0204464,0204212,etc |
| main sequence | MS | 38 | 4 | 2.000647 | 0204399,0204371,etc |
| luminosity function | LF | 124 | 4 | 2.001883 | 0204178,0204195,etc |
| planetary nebula | PN | 128 | 4 | 2.006352 | 0204088,0204124,etc |
| infrared space observatory | ISO | 75 | 4 | 2.001147 | 0204241,0204060,etc |
| interstellar radiation field | ISRF | 49 | 4 | 2.001424 | 0204241,0204392,etc |
| giant molecular cloud | GMC | 43 | 4 | 2.000612 | 0204241,0204309,etc |
| position sensitive proportional counter | PSPC | 21 | 4 | 1.000624 | 0204489,0204128,etc |
| isaac newton telescope | INT | 36 | 4 | 2.000435 | 0204343,0204006,etc |
| kolmogorov smirnov | KS | 101 | 4 | 2.004249 | 0204171,0204185,etc |
| digital sky survey | DSS | 12 | 4 | 1.000468 | 0204217,0204466,etc |
| right ascension | RA | 21 | 4 | 2.000592 | 0204217,0204438,etc |
| max planck institute for astronomy | MPIA | 4 | 4 | 1.000106 | 0204162,0204065,etc |
| max planck institute for astrophysics | MPA | 4 | 4 | 1.000106 | 0204162,0204065,etc |
| all sky monitor | ASM | 31 | 4 | 1.001119 | 0204132,0204267,etc |
| apache point observatory | APO | 51 | 4 | 1.002828 | 0204248,0204065,etc |
| magnetohydrodynamic | MHD | 56 | 4 | 2.001436 | 0204045,0204417,etc |
| two micron all sky survey | 2MASS | 78 | 4 | 1.004814 | 0204065,0204342,etc |
| low energy transmission grating | LETG | 35 | 4 | 2.001458 | 0204159,0204237,etc |
| maximum entropy method | MEM | 64 | 4 | 2.005581 | 0204340,0204149,etc |
| dispersion measure | DM | 34 | 4 | 2.000712 | 0204219,0204238,etc |
| star formation | SF | 71 | 4 | 2.003417 | 0204278,0204222,etc |
| radio frequency interference | RFI | 22 | 4 | 2.000604 | 0204195,0204067,etc |
| large scale structure | LSS | 7 | 4 | 1.000221 | 0204017,0204068,etc |
| herbig haro | HH | 365 | 4 | 2.004811 | 0204417,0204434,etc |
| space telescope science institute | STScI | 10 | 4 | 1.000079 | 0204192,0204042,etc |
| inner lindblad resonance | ILR | 51 | 4 | 2.001079 | 0204040,0204435,etc |
| hubble deep field north | HDFN | 14 | 4 | 2.000444 | 0204315,0204198,etc |
| lyman break galaxy | LBG | 93 | 4 | 2.003769 | 0204315,0204198,etc |
| faint object spectrograph | FOS | 40 | 4 | 2.00065 | 0204408,0204304,etc |
| star formation efficiency | SFE | 33 | 4 | 1.000611 | 0204435,0204366,etc |
| planetary camera | PC | 126 | 4 | 2.000606 | 0204184,0204182,etc |
| one dimensional | 1D | 46 | 4 | 2.000676 | 0204149,0204158,etc |
| blue compact dwarf | BCD | 136 | 3 | 1.004704 | 0204528,0204301,etc |
| local standard of rest | LSR | 9 | 3 | 1.000519 | 0204339,0204464,etc |
| nordic optical telescope | NOT | 25 | 3 | 2.000626 | 0204426,0204278,etc |
| william herschel telescope | WHT | 9 | 3 | 1.000305 | 0204464,0204343,etc |
| dark matter | DM | 77 | 3 | 2.000681 | 0204178,0204460,etc |
| milky way | MW | 6 | 3 | 1.000099 | 0204178,0204042,etc |
| astronomical image processing system | AIPS | 9 | 3 | 1.000229 | 0204088,0204367,etc |
| long wavelength spectrometer | LWS | 90 | 3 | 1.002593 | 0204241,0204432,etc |
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