| active galactic nucleus | AGN | 665 | 43 | 2.004256 | 0303302,0303166,etc |
| cosmic microwave background | CMB | 456 | 35 | 2.002557 | 0303555,0303161,etc |
| cold dark matter | CDM | 342 | 30 | 2.003203 | 0303302,0303382,etc |
| initial mass function | IMF | 317 | 25 | 2.002115 | 0303240,0303325,etc |
| spectral energy distribution | SED | 243 | 23 | 1.002352 | 0303166,0303161,etc |
| supernova | SN | 944 | 22 | 2.009131 | 0303456,0303171,etc |
| interstellar medium | ISM | 213 | 21 | 1.001344 | 0303240,0303644,etc |
| point spread function | PSF | 250 | 20 | 1.003229 | 0303216,0303184,etc |
| gamma ray burst | GRB | 646 | 19 | 2.005836 | 0303456,0303650,etc |
| hubble space telescope | HST | 227 | 19 | 2.000826 | 0303558,0303216,etc |
| sloan digital sky survey | SDSS | 103 | 19 | 1.001549 | 0303558,0303382,etc |
| nasa/ipac extragalactic database | NED | 33 | 17 | 1.000111 | 0303387,0303216,etc |
| star formation rate | SFR | 309 | 17 | 2.001924 | 0303240,0303190,etc |
| supernova remnant | SNR | 178 | 17 | 1.001655 | 0303110,0303051,etc |
| intergalactic medium | IGM | 327 | 16 | 1.002519 | 0303302,0303449,etc |
| luminosity function | LF | 221 | 14 | 1.004789 | 0303558,0303382,etc |
| asymptotic giant branch | AGB | 196 | 12 | 1.002417 | 0303456,0303325,etc |
| near infrared | NIR | 132 | 12 | 2.001166 | 0303325,0303166,etc |
| red giant branch | RGB | 149 | 11 | 1.005048 | 0303293,0303456,etc |
| color magnitude diagram | CMD | 90 | 11 | 1.001857 | 0303325,0303493,etc |
| signal to noise ratio | S/N | 55 | 11 | 1.000864 | 0303221,0303106,etc |
| horizontal branch | HB | 79 | 11 | 2.004305 | 0303493,0303295,etc |
| wilkinson microwave anisotropy probe | WMAP | 135 | 11 | 2.002388 | 0303127,0303007,etc |
| globular cluster | GC | 521 | 10 | 1.006873 | 0303293,0303292,etc |
| star formation | SF | 292 | 10 | 2.006423 | 0303493,0303257,etc |
| equivalent width | EW | 73 | 10 | 1.000493 | 0303083,0303029,etc |
| period luminosity | PL | 201 | 9 | 1.002219 | 0303325,0303101,etc |
| space telescope imaging spectrograph | STIS | 267 | 9 | 2.006636 | 0303102,0303500,etc |
| proportional counter array | PCA | 32 | 9 | 2.000612 | 0303664,0303136,etc |
| lyman break galaxy | LBG | 111 | 8 | 2.001655 | 0303302,0303382,etc |
| low mass x ray binary | LMXB | 154 | 8 | 2.00279 | 0303375,0303402,etc |
| field of view | FOV | 30 | 8 | 1.000194 | 0303066,0303480,etc |
| neutron star | NS | 135 | 8 | 1.001852 | 0303480,0303380,etc |
| large magellanic cloud | LMC | 66 | 8 | 2.00296 | 0303666,0303494,etc |
| very large array | VLA | 131 | 8 | 1.004349 | 0303423,0303134,etc |
| friedmann robertson walker | FRW | 80 | 8 | 2.001673 | 0303150,0303497,etc |
| probability distribution function | PDF | 158 | 7 | 2.002911 | 0303240,0303284,etc |
| black hole | BH | 149 | 7 | 2.006156 | 0303382,0303416,etc |
| main sequence | MS | 123 | 7 | 1.005653 | 0303325,0303493,etc |
| low surface brightness | LSB | 41 | 7 | 1.001163 | 0303416,0303052,etc |
| star formation history | SFH | 87 | 7 | 1.00137 | 0303190,0303331,etc |
| smoothed particle hydrodynamics | SPH | 133 | 7 | 1.003419 | 0303257,0303571,etc |
| magnetohydrodynamics | MHD | 128 | 7 | 1.001371 | 0303241,0303482,etc |
| colour magnitude diagram | CMD | 175 | 7 | 1.004454 | 0303057,0303536,etc |
| intracluster medium | ICM | 62 | 7 | 2.000469 | 0303359,0303355,etc |
| cosmic microwave background radiation | CMBR | 60 | 6 | 1.001229 | 0303014,0303644,etc |
| cataclysmic variable | CV | 41 | 6 | 2.000501 | 0303224,0303488,etc |
| dark matter | DM | 63 | 6 | 1.002514 | 0303558,0303449,etc |
| very large telescope | VLT | 19 | 6 | 1.000716 | 0303166,0303101,etc |
| full width at half maximum | FWHM | 27 | 6 | 1.00039 | 0303493,0303184,etc |
| supermassive black hole | SBH | 95 | 6 | 1.002872 | 0303130,0303628,etc |
| advanced camera for surveys | ACS | 23 | 6 | 1.000689 | 0303167,0303605,etc |
| big bang nucleosynthesis | BBN | 54 | 6 | 1.000532 | 0303248,0303089,etc |
| kitt peak national observatory | KPNO | 39 | 6 | 2.001361 | 0303102,0303234,etc |
| large scale structure | LSS | 28 | 6 | 1.001072 | 0303045,0303089,etc |
| high energy transmission grating spectrometer | HETGS | 25 | 5 | 1.001004 | 0303387,0303277,etc |
| extremely red object | ERO | 404 | 5 | 2.012298 | 0303382,0303023,etc |
| white dwarf | WD | 196 | 5 | 1.008079 | 0303325,0303537,etc |
| fast fourier transform | FFT | 21 | 5 | 1.001248 | 0303130,0303402,etc |
| warm dark matter | WDM | 45 | 5 | 2.005326 | 0303481,0303584,etc |
| european photon imaging camera | EPIC | 21 | 5 | 1.000931 | 0303051,0303380,etc |
| young stellar object | YSO | 33 | 5 | 2.00103 | 0303137,0303500,etc |
| pre main sequence | PMS | 81 | 5 | 2.00328 | 0303199,0303083,etc |
| planetary nebula | PN | 97 | 5 | 2.002083 | 0303234,0303008,etc |
| rossi x ray timing explorer | RXTE | 55 | 5 | 1.001666 | 0303664,0303402,etc |
| advanced ccd imaging spectrometer | ACIS | 20 | 5 | 1.000651 | 0303597,0303314,etc |
| far infrared | FIR | 37 | 5 | 1.001576 | 0303181,0303078,etc |
| infrared | IR | 173 | 5 | 1.003286 | 0303150,0303648,etc |
| local standard of rest | LSR | 20 | 5 | 1.001394 | 0303326,0303653,etc |
| fundamental plane | FP | 119 | 5 | 2.004122 | 0303035,0303490,etc |
| x ray luminosity function | XLF | 19 | 4 | 1.001132 | 0303387,0303167,etc |
| quasi stellar object | QSO | 258 | 4 | 1.007575 | 0303302,0303184,etc |
| kolmogorov smirnov | KS | 15 | 4 | 1.000316 | 0303302,0303493,etc |
| millisecond pulsar | MSP | 45 | 4 | 1.003758 | 0303375,0303379,etc |
| adaptive mesh refinement | AMR | 9 | 4 | 1.000785 | 0303240,0303355,etc |
| kuiper airborne observatory | KAO | 9 | 4 | 1.000288 | 0303004,0303576,etc |
| australia telescope compact array | ATCA | 23 | 4 | 2.000942 | 0303644,0303473,etc |
| tully fisher | TF | 36 | 4 | 2.000385 | 0303558,0303190,etc |
| simple stellar population | SSP | 32 | 4 | 1.000388 | 0303325,0303331,etc |
| two dimensional | 2D | 33 | 4 | 2.000631 | 0303171,0303503,etc |
| neutron stars | NS | 137 | 4 | 2.003707 | 0303227,0303136,etc |
| sunyaev zel'dovich | SZ | 176 | 4 | 2.004597 | 0303519,0303510,etc |
| local group | LG | 10 | 4 | 1.000524 | 0303493,0303181,etc |
| intra cluster medium | ICM | 15 | 4 | 1.000619 | 0303609,0303157,etc |
| two micron all sky survey | 2MASS | 148 | 4 | 1.003792 | 0303184,0303215,etc |
| inverse compton | IC | 46 | 4 | 1.002104 | 0303107,0303593,etc |
| proto planetary nebula | PPN | 56 | 4 | 2.00188 | 0303234,0303008,etc |
| herbig haro | HH | 36 | 4 | 2.000561 | 0303604,0303500,etc |
| broad line region | BLR | 32 | 4 | 2.001516 | 0303562,0303546,etc |
| the red giant branch | TRGB | 72 | 4 | 2.003248 | 0303101,0303203,etc |
| high mass x ray binary | HMXB | 78 | 4 | 2.00305 | 0303494,0303665,etc |
| cosmic ray | CR | 252 | 4 | 1.008065 | 0303593,0303078,etc |
| national radio astronomy observatory | NRAO | 5 | 4 | 1.000113 | 0303131,0303530,etc |
| ultraviolet | UV | 26 | 4 | 2.000243 | 0303150,0303164,etc |
| main sequence turn off | MSTO | 12 | 4 | 2.000882 | 0303331,0303511,etc |
| position angle | PA | 63 | 4 | 1.003325 | 0303082,0303261,etc |
| international celestial reference frame | ICRF | 30 | 4 | 2.001956 | 0303342,0303637,etc |
| fourier transform spectrometer | FTS | 10 | 4 | 1.000124 | 0303510,0303542,etc |
| broad absorption line | BAL | 37 | 4 | 1.001015 | 0303603,0303385,etc |
| quasiperiodic oscillation | QPO | 106 | 4 | 2.006044 | 0303665,0303421,etc |
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