| spectral energy distribution | SED | 436 | 36 | 2.002858 | 0209428,0209459,etc |
| cosmic microwave background | CMB | 898 | 33 | 1.003245 | 0209373,0209567,etc |
| initial mass function | IMF | 314 | 24 | 1.001722 | 0209387,0209278,etc |
| interstellar medium | ISM | 183 | 22 | 2.001269 | 0209066,0209183,etc |
| point spread function | PSF | 354 | 21 | 2.00308 | 0209006,0209035,etc |
| active galactic nucleus | AGN | 309 | 21 | 1.001977 | 0209115,0209035,etc |
| gamma ray burst | GRB | 344 | 19 | 2.004103 | 0209368,0209183,etc |
| cold dark matter | CDM | 101 | 17 | 2.004171 | 0209167,0209040,etc |
| nasa/ipac extragalactic database | NED | 32 | 17 | 1.000308 | 0209012,0209499,etc |
| black hole | BH | 575 | 16 | 2.010635 | 0209587,0209368,etc |
| hubble space telescope | HST | 131 | 15 | 2.000889 | 0209078,0209498,etc |
| star formation rate | SFR | 190 | 14 | 1.001754 | 0209018,0209252,etc |
| near infrared | NIR | 92 | 13 | 1.001421 | 0209522,0209619,etc |
| asymptotic giant branch | AGB | 201 | 13 | 2.004922 | 0209240,0209418,etc |
| supernova | SN | 352 | 12 | 1.008555 | 0209387,0209278,etc |
| red giant branch | RGB | 107 | 11 | 1.003205 | 0209028,0209240,etc |
| supernova remnant | SNR | 371 | 11 | 2.003613 | 0209565,0209480,etc |
| globular cluster | GC | 395 | 10 | 2.011198 | 0209393,0209220,etc |
| main sequence | MS | 50 | 10 | 1.001062 | 0209278,0209346,etc |
| equivalent width | EW | 90 | 10 | 2.001907 | 0209278,0209496,etc |
| intergalactic medium | IGM | 64 | 10 | 1.001855 | 0209551,0209183,etc |
| very large array | VLA | 31 | 10 | 1.000634 | 0209630,0209480,etc |
| signal to noise ratio | SNR | 54 | 9 | 2.001201 | 0209517,0209459,etc |
| space telescope imaging spectrograph | STIS | 213 | 9 | 2.000909 | 0209313,0209229,etc |
| equation of state | EoS | 71 | 9 | 1.001219 | 0209100,0209575,etc |
| intracluster medium | ICM | 178 | 9 | 2.002784 | 0209436,0209332,etc |
| ultraviolet | UV | 193 | 9 | 2.00382 | 0209326,0209018,etc |
| white dwarf | WD | 315 | 9 | 2.010659 | 0209248,0209542,etc |
| luminosity function | LF | 181 | 9 | 2.006393 | 0209115,0209391,etc |
| large magellanic cloud | LMC | 178 | 9 | 2.002209 | 0209259,0209280,etc |
| neutron star | NS | 255 | 8 | 2.009396 | 0209393,0209027,etc |
| infrared | IR | 461 | 8 | 2.010052 | 0209571,0209115,etc |
| sloan digital sky survey | SDSS | 75 | 8 | 2.002334 | 0209515,0209055,etc |
| horizontal branch | HB | 232 | 8 | 2.005988 | 0209028,0209220,etc |
| planetary nebula | PN | 274 | 8 | 2.004963 | 0209427,0209418,etc |
| cataclysmic variable | CV | 83 | 8 | 1.00361 | 0209319,0209542,etc |
| far infrared | FIR | 179 | 8 | 2.003151 | 0209263,0209235,etc |
| broad line region | BLR | 241 | 8 | 1.002552 | 0209263,0209155,etc |
| small magellanic cloud | SMC | 104 | 7 | 2.002624 | 0209018,0209259,etc |
| australia telescope compact array | ATCA | 15 | 7 | 1.000461 | 0209480,0209321,etc |
| color magnitude diagram | CMD | 20 | 7 | 1.002101 | 0209574,0209314,etc |
| atacama large millimeter array | ALMA | 131 | 6 | 1.00591 | 0209002,0209630,etc |
| low mass x ray binary | LMXB | 25 | 6 | 1.00063 | 0209629,0209016,etc |
| charge coupled device | CCD | 39 | 6 | 1.002224 | 0209509,0209585,etc |
| infrared space observatory | ISO | 99 | 6 | 2.001516 | 0209617,0209471,etc |
| anglo australian telescope | AAT | 20 | 6 | 1.002675 | 0209359,0209534,etc |
| charge transfer inefficiency | CTI | 82 | 6 | 2.003675 | 0209126,0209280,etc |
| quasi periodic oscillation | QPO | 89 | 6 | 2.002174 | 0209009,0209467,etc |
| adaptive optics | AO | 84 | 6 | 2.001171 | 0209628,0209432,etc |
| singular isothermal sphere | SIS | 51 | 5 | 2.001872 | 0209040,0209036,etc |
| field of view | FOV | 49 | 5 | 2.001695 | 0209571,0209202,etc |
| smoothed particle hydrodynamics | SPH | 24 | 5 | 2.00077 | 0209387,0209043,etc |
| full width at half maximum | FWHM | 27 | 5 | 1.000861 | 0209373,0209577,etc |
| colour magnitude diagram | CMD | 54 | 5 | 1.000682 | 0209028,0209207,etc |
| wolf rayet | WR | 151 | 5 | 2.003033 | 0209066,0209600,etc |
| star formation history | SFH | 22 | 5 | 1.001145 | 0209147,0209260,etc |
| large scale structure | LSS | 26 | 5 | 1.000734 | 0209536,0209162,etc |
| new technology telescope | NTT | 14 | 5 | 1.000336 | 0209536,0209377,etc |
| synchrotron self compton | SSC | 31 | 5 | 1.002238 | 0209578,0209487,etc |
| european southern observatory | ESO | 30 | 5 | 1.001088 | 0209630,0209377,etc |
| advanced ccd imaging spectrometer | ACIS | 121 | 5 | 1.006066 | 0209124,0209126,etc |
| mass function | MF | 72 | 5 | 2.00363 | 0209315,0209048,etc |
| lyman break galaxy | LBG | 62 | 5 | 2.002605 | 0209553,0209243,etc |
| weakly interacting massive particle | WIMP | 36 | 4 | 1.006543 | 0209528,0209556,etc |
| low frequency instrument | LFI | 66 | 4 | 1.001351 | 0209373,0209591,etc |
| high frequency instrument | HFI | 27 | 4 | 1.000989 | 0209373,0209591,etc |
| burst and transient source experiment | BATSE | 43 | 4 | 1.00234 | 0209089,0209202,etc |
| cosmic ray | CR | 315 | 4 | 2.003804 | 0209565,0209546,etc |
| simple stellar population | SSP | 126 | 4 | 1.002014 | 0209340,0209220,etc |
| local standard of rest | LSR | 23 | 4 | 2.000741 | 0209619,0209086,etc |
| sunyaev zel'dovich | SZ | 67 | 4 | 2.005607 | 0209336,0209262,etc |
| soft x ray transient | SXRT | 19 | 4 | 1.000863 | 0209027,0209283,etc |
| owens valley radio observatory | OVRO | 20 | 4 | 1.001423 | 0209004,0209104,etc |
| low luminosity agn | LLAGN | 73 | 4 | 1.002919 | 0209607,0209123,etc |
| flat spectrum radio quasar | FSRQ | 64 | 4 | 2.001032 | 0209607,0209621,etc |
| polycyclic aromatic hydrocarbon | PAH | 15 | 4 | 2.001174 | 0209588,0209450,etc |
| magnetohydrodynamic | MHD | 40 | 4 | 2.000978 | 0209119,0209426,etc |
| charge transfer efficiency | CTE | 12 | 4 | 1.000254 | 0209314,0209184,etc |
| proportional counter array | PCA | 47 | 4 | 1.001684 | 0209202,0209155,etc |
| low energy transmission grating spectrometer | LETGS | 47 | 4 | 1.001351 | 0209516,0209007,etc |
| two micron all sky survey | 2MASS | 99 | 4 | 1.003815 | 0209048,0209189,etc |
| nrao vla sky survey | NVSS | 28 | 4 | 1.0019 | 0209502,0209088,etc |
| inverse compton | IC | 24 | 4 | 2.000931 | 0209091,0209194,etc |
| dispersion measure | DM | 8 | 3 | 1.000449 | 0209090,0209480,etc |
| signal to noise | S/N | 27 | 3 | 2.000647 | 0209193,0209562,etc |
| subdwarf b | sdB | 77 | 3 | 2.005545 | 0209028,0209472,etc |
| anomalous x ray pulsar | AXP | 71 | 3 | 2.00519 | 0209100,0209599,etc |
| hard x ray | HXR | 84 | 3 | 2.012154 | 0209436,0209075,etc |
| reflection grating spectrometer | RGS | 64 | 3 | 2.002134 | 0209145,0209087,etc |
| medium energy concentrator spectrometer | MECS | 27 | 3 | 2.001647 | 0209565,0209538,etc |
| pure luminosity evolution | PLE | 39 | 3 | 2.002172 | 0209522,0209408,etc |
| roche lobe overflow | RLOF | 65 | 3 | 2.002041 | 0209066,0209203,etc |
| adaptive mesh refinement | AMR | 22 | 3 | 2.001153 | 0209326,0209420,etc |
| big bang nucleosynthesis | BBN | 10 | 3 | 1.000174 | 0209274,0209140,etc |
| dark matter | DM | 27 | 3 | 1.001519 | 0209558,0209181,etc |
| broad absorption line | BAL | 13 | 3 | 1.000104 | 0209319,0209263,etc |
| next generation space telescope | NGST | 18 | 3 | 1.001061 | 0209115,0209346,etc |
| giant molecular cloud | GMC | 18 | 3 | 1.000761 | 0209619,0209586,etc |
| william herschel telescope | WHT | 17 | 3 | 2.000701 | 0209380,0209375,etc |
| goddard high resolution spectrograph | GHRS | 20 | 3 | 1.000382 | 0209229,0209086,etc |
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