| star formation rate | SFR | 214 | 23 | 1.001595 | 9806317,9806084,etc |
| active galactic nucleus | AGN | 263 | 23 | 2.002979 | 9806098,9806168,etc |
| spectral energy distribution | SED | 226 | 21 | 2.000979 | 9806317,9806228,etc |
| initial mass function | IMF | 193 | 18 | 1.003369 | 9806034,9806084,etc |
| cosmic microwave background | CMB | 309 | 18 | 1.003267 | 9806193,9806116,etc |
| cold dark matter | CDM | 361 | 17 | 2.003193 | 9806028,9806139,etc |
| nasa/ipac extragalactic database | NED | 21 | 15 | 1.000115 | 9806137,9806400,etc |
| point spread function | PSF | 122 | 15 | 1.001024 | 9806171,9806158,etc |
| luminosity function | LF | 195 | 13 | 2.001703 | 9806092,9806041,etc |
| interstellar medium | ISM | 127 | 13 | 1.000984 | 9806034,9806084,etc |
| hubble space telescope | HST | 106 | 12 | 1.001004 | 9806178,9806226,etc |
| gamma ray burst | GRB | 294 | 10 | 2.005428 | 9806179,9806010,etc |
| hubble deep field | HDF | 161 | 8 | 1.004805 | 9806120,9806226,etc |
| equivalent width | EW | 99 | 8 | 1.001888 | 9806006,9806229,etc |
| color magnitude diagram | CMD | 88 | 8 | 2.00218 | 9806313,9806191,etc |
| faint object spectrograph | FOS | 65 | 8 | 2.000858 | 9806033,9806386,etc |
| far infrared | FIR | 92 | 7 | 2.003096 | 9806171,9806370,etc |
| high velocity cloud | HVC | 23 | 6 | 1.001163 | 9806020,9806178,etc |
| low mass x ray binary | LMXB | 58 | 6 | 1.000732 | 9806158,9806050,etc |
| large magellanic cloud | LMC | 43 | 6 | 2.002029 | 9806112,9806380,etc |
| ultraviolet | UV | 201 | 6 | 1.005981 | 9806286,9806046,etc |
| dark matter | DM | 82 | 5 | 2.002176 | 9806304,9806109,etc |
| signal to noise ratio | S/N | 43 | 5 | 2.00103 | 9806020,9806210,etc |
| supernova | SN | 112 | 5 | 2.001687 | 9806112,9806362,etc |
| white dwarf | WD | 248 | 5 | 2.003412 | 9806336,9806166,etc |
| asymptotic giant branch | AGB | 17 | 5 | 1.000163 | 9806336,9806314,etc |
| new technology telescope | NTT | 33 | 5 | 2.00155 | 9806175,9806253,etc |
| intracluster medium | ICM | 126 | 5 | 2.001482 | 9806386,9806375,etc |
| globular cluster | GC | 88 | 4 | 2.004959 | 9806081,9806092,etc |
| horizontal branch | HB | 66 | 4 | 1.004407 | 9806081,9806050,etc |
| dwarf elliptical | dE | 39 | 4 | 1.009714 | 9806092,9806304,etc |
| dwarf irregular | dI | 88 | 4 | 2.002644 | 9806092,9806304,etc |
| blue compact dwarf | BCD | 188 | 4 | 2.005338 | 9806304,9806239,etc |
| fast fourier transform | FFT | 5 | 4 | 1.00017 | 9806374,9806255,etc |
| brightest cluster galaxy | BCG | 26 | 4 | 1.000618 | 9806094,9806151,etc |
| standard cold dark matter | sCDM | 35 | 4 | 2.000683 | 9806116,9806263,etc |
| giant molecular cloud | GMC | 59 | 4 | 1.001987 | 9806298,9806377,etc |
| cosmic background explorer | COBE | 12 | 4 | 1.000706 | 9806118,9806136,etc |
| cosmic microwave background radiation | CMBR | 72 | 4 | 1.002078 | 9806063,9806387,etc |
| very large array | VLA | 24 | 4 | 1.001338 | 9806112,9806395,etc |
| compton gamma ray observatory | CGRO | 4 | 4 | 1.000076 | 9806170,9806175,etc |
| low energy concentrator spectrometer | LECS | 97 | 4 | 1.005032 | 9806229,9806113,etc |
| supernova remnant | SNR | 35 | 4 | 2.00094 | 9806319,9806009,etc |
| broad line region | BLR | 31 | 4 | 2.000687 | 9806216,9806199,etc |
| james clerk maxwell telescope | JCMT | 9 | 4 | 1.000252 | 9806082,9806061,etc |
| ultraluminous infrared galaxy | ULIRG | 159 | 4 | 2.007522 | 9806314,9806091,etc |
| hot dark matter | HDM | 52 | 4 | 2.001592 | 9806286,9806037,etc |
| soft x ray transient | SXT | 27 | 4 | 2.000575 | 9806064,9806038,etc |
| red giant branch | RGB | 32 | 3 | 2.001765 | 9806081,9806390,etc |
| astronomy | ASTRON | 3 | 3 | 1.000327 | 9806092,9806050,etc |
| position angle | PA | 16 | 3 | 1.00098 | 9806021,9806076,etc |
| particle mesh | PM | 16 | 3 | 2.000234 | 9806238,9806255,etc |
| black hole | BH | 247 | 3 | 2.003817 | 9806002,9806365,etc |
| dwarf spheroidal | dSph | 20 | 3 | 2.001519 | 9806034,9806376,etc |
| large scale structure | LSS | 44 | 3 | 2.001718 | 9806028,9806037,etc |
| sloan digital sky survey | SDSS | 18 | 3 | 1.000684 | 9806028,9806362,etc |
| all sky monitor | ASM | 17 | 3 | 2.000519 | 9806323,9806049,etc |
| solid state imaging spectrometer | SIS | 97 | 3 | 2.006745 | 9806168,9806113,etc |
| primordial black hole | PBH | 100 | 3 | 2.004476 | 9806139,9806301,etc |
| broad absorption line | BAL | 118 | 3 | 2.008777 | 9806171,9806101,etc |
| low surface brightness | LSB | 57 | 3 | 1.004144 | 9806400,9806355,etc |
| cosmic background radiation | CBR | 55 | 3 | 2.002149 | 9806118,9806037,etc |
| infrared | IR | 143 | 3 | 2.008329 | 9806251,9806129,etc |
| star formation | SF | 65 | 3 | 2.003492 | 9806112,9806266,etc |
| broad emission line region | BELR | 20 | 3 | 1.00032 | 9806170,9806392,etc |
| rosat all sky survey | RASS | 10 | 3 | 2.000235 | 9806170,9806113,etc |
| quasi periodic oscillation | QPO | 220 | 3 | 2.006143 | 9806050,9806049,etc |
| full width half maximum | FWHM | 15 | 3 | 2.001048 | 9806275,9806149,etc |
| european southern observatory | ESO | 8 | 3 | 1.000137 | 9806175,9806125,etc |
| big bang nucleosynthesis | BBN | 15 | 3 | 2.000429 | 9806362,9806129,etc |
| next generation space telescope | NGST | 22 | 3 | 2.001424 | 9806074,9806053,etc |
| local thermodynamic equilibrium | LTE | 19 | 3 | 1.00052 | 9806058,9806299,etc |
| kolmogorov smirnov | K-S | 11 | 3 | 1.000162 | 9806149,9806036,etc |
| apache point observatory | APO | 13 | 3 | 2.000667 | 9806082,9806386,etc |
| canada france redshift survey | CFRS | 29 | 3 | 1.003411 | 9806077,9806184,etc |
| nordic optical telescope | NOT | 23 | 3 | 2.001135 | 9806166,9806225,etc |
| goddard high resolution spectrograph | GHRS | 32 | 3 | 2.00078 | 9806386,9806401,etc |
| cataclysmic variable | CV | 58 | 3 | 2.003723 | 9806007,9806157,etc |
| interstellar radiation field | ISRF | 7 | 3 | 1.000026 | 9806314,9806370,etc |
| infrared space observatory | ISO | 27 | 3 | 2.002817 | 9806184,9806357,etc |
| line of sight | LOS | 82 | 3 | 2.000986 | 9806286,9806192,etc |
| diffuse infrared background experiment | DIRBE | 127 | 3 | 2.00236 | 9806357,9806129,etc |
| international ultraviolet explorer | IUE | 63 | 3 | 1.002399 | 9806269,9806398,etc |
| high resolution imager | HRI | 51 | 3 | 2.001097 | 9806269,9806241,etc |