| cosmic microwave background | CMB | 1027 | 49 | 2.004205 | 0306236,0306372,etc |
| active galactic nucleus | AGN | 575 | 44 | 2.001899 | 0306199,0306169,etc |
| nasa/ipac extragalactic database | NED | 79 | 33 | 1.000262 | 0306169,0306260,etc |
| cold dark matter | CDM | 361 | 31 | 1.003001 | 0306205,0306293,etc |
| point spread function | PSF | 328 | 29 | 1.003176 | 0306061,0306216,etc |
| spectral energy distribution | SED | 421 | 29 | 1.002384 | 0306014,0306461,etc |
| interstellar medium | ISM | 350 | 27 | 1.002101 | 0306290,0306318,etc |
| initial mass function | IMF | 340 | 19 | 1.002094 | 0306373,0306335,etc |
| star formation rate | SFR | 472 | 17 | 1.00577 | 0306161,0306420,etc |
| broad line region | BLR | 85 | 16 | 1.001172 | 0306169,0306338,etc |
| supernova | SN | 550 | 16 | 1.00696 | 0306494,0306100,etc |
| intracluster medium | ICM | 179 | 14 | 1.004315 | 0306508,0306115,etc |
| neutron star | NS | 388 | 14 | 2.007289 | 0306242,0306057,etc |
| supernova remnant | SNR | 334 | 13 | 2.005172 | 0306318,0306628,etc |
| sloan digital sky survey | SDSS | 241 | 13 | 1.003925 | 0306260,0306175,etc |
| wilkinson microwave anisotropy probe | WMAP | 124 | 13 | 1.003219 | 0306597,0306272,etc |
| gamma ray burst | GRB | 341 | 13 | 2.007079 | 0306100,0306396,etc |
| black hole | BH | 622 | 13 | 2.005005 | 0306550,0306163,etc |
| color magnitude diagram | CMD | 186 | 11 | 2.001436 | 0306373,0306138,etc |
| very large telescope | VLT | 67 | 11 | 1.001133 | 0306469,0306030,etc |
| white dwarf | WD | 309 | 11 | 1.003385 | 0306470,0306138,etc |
| equivalent width | EW | 107 | 11 | 2.001499 | 0306518,0306076,etc |
| asymptotic giant branch | AGB | 334 | 10 | 2.006828 | 0306373,0306290,etc |
| signal to noise ratio | SNR | 51 | 10 | 1.000261 | 0306216,0306290,etc |
| equation of state | EOS | 92 | 10 | 2.001908 | 0306237,0306430,etc |
| near infrared | NIR | 121 | 10 | 2.001563 | 0306470,0306391,etc |
| infrared | IR | 289 | 9 | 1.006035 | 0306014,0306583,etc |
| luminosity function | LF | 228 | 9 | 2.004637 | 0306494,0306508,etc |
| cosmic ray | CR | 496 | 9 | 1.005598 | 0306226,0306395,etc |
| planetary nebula | PN | 71 | 9 | 1.001125 | 0306099,0306541,etc |
| singular isothermal sphere | SIS | 61 | 9 | 1.001538 | 0306238,0306450,etc |
| hubble space telescope | HST | 75 | 8 | 2.002487 | 0306419,0306522,etc |
| main sequence | MS | 111 | 8 | 2.001142 | 0306335,0306461,etc |
| pre main sequence | pre-MS | 45 | 8 | 2.00112 | 0306237,0306095,etc |
| advanced ccd imaging spectrometer | ACIS | 53 | 8 | 1.000952 | 0306318,0306057,etc |
| full width at half maximum | FWHM | 46 | 8 | 1.001054 | 0306518,0306167,etc |
| cataclysmic variable | CV | 133 | 8 | 2.002706 | 0306421,0306085,etc |
| far infrared | FIR | 240 | 8 | 2.002626 | 0306573,0306075,etc |
| large scale structure | LSS | 62 | 8 | 2.003368 | 0306115,0306511,etc |
| signal to noise | S/N | 37 | 8 | 1.000528 | 0306059,0306358,etc |
| rosat all sky survey | RASS | 33 | 7 | 1.000789 | 0306169,0306265,etc |
| proportional counter array | PCA | 92 | 7 | 2.00426 | 0306569,0306116,etc |
| young stellar object | YSO | 88 | 7 | 2.001883 | 0306012,0306150,etc |
| position angle | PA | 220 | 7 | 2.006111 | 0306095,0306150,etc |
| wolf rayet | WR | 212 | 7 | 1.006511 | 0306541,0306016,etc |
| space telescope imaging spectrograph | STIS | 144 | 7 | 2.001951 | 0306043,0306353,etc |
| monte carlo | MC | 30 | 6 | 1.001113 | 0306545,0306384,etc |
| all sky monitor | ASM | 55 | 6 | 1.002403 | 0306199,0306116,etc |
| very large array | VLA | 29 | 6 | 2.00056 | 0306216,0306150,etc |
| low surface brightness | LSB | 243 | 6 | 2.001905 | 0306228,0306165,etc |
| extremely red object | ERO | 20 | 6 | 1.000376 | 0306212,0306407,etc |
| large magellanic cloud | LMC | 108 | 6 | 2.003687 | 0306318,0306144,etc |
| dark matter | DM | 126 | 6 | 2.005862 | 0306282,0306505,etc |
| james clerk maxwell telescope | JCMT | 26 | 6 | 1.000456 | 0306300,0306532,etc |
| broad absorption line | BAL | 149 | 6 | 1.006605 | 0306518,0306512,etc |
| field of view | FOV | 32 | 6 | 2.00033 | 0306115,0306522,etc |
| synchrotron self compton | SSC | 17 | 6 | 1.001248 | 0306206,0306288,etc |
| low mass x ray binary | LMXB | 64 | 6 | 1.000901 | 0306441,0306411,etc |
| two micron all sky survey | 2MASS | 35 | 5 | 1.000585 | 0306061,0306566,etc |
| planetary camera | PC | 50 | 5 | 2.001546 | 0306216,0306283,etc |
| blue compact dwarf | BCD | 120 | 5 | 2.002134 | 0306290,0306165,etc |
| narrow line region | NLR | 94 | 5 | 1.002201 | 0306169,0306338,etc |
| intergalactic medium | IGM | 36 | 5 | 2.000369 | 0306469,0306409,etc |
| kolmogorov smirnov | KS | 36 | 5 | 1.000847 | 0306282,0306566,etc |
| digitized sky survey | DSS | 116 | 5 | 2.006788 | 0306534,0306341,etc |
| national radio astronomy observatory | NRAO | 13 | 5 | 2.000217 | 0306103,0306150,etc |
| extreme ultraviolet | EUV | 45 | 5 | 2.000392 | 0306590,0306613,etc |
| advection dominated accretion flow | ADAF | 48 | 5 | 2.002028 | 0306599,0306411,etc |
| adaptive optics | AO | 98 | 5 | 2.002152 | 0306537,0306030,etc |
| spectral energy distributions | SED | 151 | 5 | 2.002809 | 0306165,0306167,etc |
| inverse compton | IC | 104 | 5 | 2.00213 | 0306206,0306314,etc |
| 2df galaxy redshift survey | 2dFGRS | 83 | 5 | 2.001369 | 0306239,0306128,etc |
| new technology telescope | NTT | 26 | 5 | 1.000972 | 0306608,0306030,etc |
| quasi periodic oscillation | QPO | 289 | 5 | 1.003768 | 0306085,0306262,etc |
| local thermodynamic equilibrium | LTE | 123 | 5 | 2.009504 | 0306076,0306144,etc |
| red giant branch | RGB | 29 | 5 | 2.000428 | 0306167,0306309,etc |
| european southern observatory | ESO | 32 | 5 | 2.000551 | 0306619,0306340,etc |
| ultraviolet | UV | 19 | 5 | 1.000097 | 0306621,0306405,etc |
| three dimensional | 3D | 93 | 5 | 2.000709 | 0306570,0306148,etc |
| zero age main sequence | ZAMS | 13 | 4 | 1.000272 | 0306061,0306412,etc |
| super star cluster | SSC | 60 | 4 | 2.001809 | 0306373,0306307,etc |
| cosmic microwave background radiation | CMBR | 65 | 4 | 1.004566 | 0306293,0306409,etc |
| star formation history | SFH | 133 | 4 | 2.002649 | 0306218,0306583,etc |
| australia telescope compact array | ATCA | 37 | 4 | 2.000963 | 0306218,0306283,etc |
| supermassive black hole | SBH | 68 | 4 | 2.00061 | 0306074,0306285,etc |
| cosmic x ray background | CXB | 52 | 4 | 2.004606 | 0306569,0306115,etc |
| rossi x ray timing explorer | RXTE | 68 | 4 | 2.002839 | 0306569,0306116,etc |
| navarro frenk white | NFW | 27 | 4 | 1.001057 | 0306282,0306413,etc |
| charge transfer inefficiency | CTI | 13 | 4 | 1.000174 | 0306341,0306566,etc |
| nrao vla sky survey | NVSS | 34 | 4 | 1.002055 | 0306260,0306621,etc |
| intra cluster medium | ICM | 203 | 4 | 2.003345 | 0306494,0306508,etc |
| goddard high resolution spectrograph | GHRS | 33 | 4 | 1.001047 | 0306576,0306201,etc |
| space telescope science institute | STScI | 9 | 4 | 1.000141 | 0306576,0306167,etc |
| very long baseline array | VLBA | 26 | 4 | 1.000581 | 0306103,0306150,etc |
| compact steep spectrum | CSS | 82 | 4 | 2.0022 | 0306573,0306288,etc |
| ultra luminous infrared galaxy | ULIRG | 36 | 4 | 2.000694 | 0306573,0306592,etc |
| star formation | SF | 134 | 4 | 2.002396 | 0306075,0306167,etc |
| dispersion measure | DM | 43 | 4 | 1.004641 | 0306628,0306057,etc |
| soft gamma ray repeater | SGR | 39 | 4 | 2.002088 | 0306456,0306057,etc |
| reflection grating spectrometer | RGS | 66 | 4 | 2.001753 | 0306308,0306411,etc |
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