| active galactic nucleus | AGN | 972 | 50 | 1.005592 | 0403242,0403180,etc |
| cosmic microwave background | CMB | 608 | 36 | 2.002876 | 0403583,0403600,etc |
| spectral energy distribution | SED | 412 | 35 | 2.001837 | 0403368,0403717,etc |
| point spread function | PSF | 349 | 31 | 2.001715 | 0403229,0403544,etc |
| sloan digital sky survey | SDSS | 482 | 28 | 1.00434 | 0403116,0403106,etc |
| interstellar medium | ISM | 282 | 27 | 2.001984 | 0403587,0403251,etc |
| initial mass function | IMF | 254 | 25 | 1.002644 | 0403585,0403496,etc |
| gamma ray burst | GRB | 995 | 23 | 2.007794 | 0403180,0403360,etc |
| cold dark matter | CDM | 153 | 23 | 2.004124 | 0403701,0403104,etc |
| equivalent width | EW | 195 | 18 | 2.003797 | 0403585,0403717,etc |
| intergalactic medium | IGM | 302 | 18 | 2.001952 | 0403697,0403104,etc |
| signal to noise ratio | SNR | 85 | 18 | 1.000808 | 0403013,0403676,etc |
| nasa/ipac extragalactic database | NED | 25 | 17 | 1.000094 | 0403116,0403106,etc |
| equation of state | EOS | 354 | 17 | 1.006332 | 0403469,0403621,etc |
| supernova | SN | 550 | 16 | 2.013211 | 0403549,0403451,etc |
| hubble space telescope | HST | 104 | 15 | 1.000833 | 0403585,0403106,etc |
| star formation rate | SFR | 136 | 15 | 1.001267 | 0403192,0403452,etc |
| very large array | VLA | 176 | 15 | 2.003977 | 0403151,0403578,etc |
| dark matter | DM | 275 | 13 | 2.003952 | 0403619,0403154,etc |
| full width at half maximum | FWHM | 57 | 13 | 2.000846 | 0403717,0403192,etc |
| near infrared | NIR | 107 | 13 | 1.001134 | 0403192,0403104,etc |
| black hole | BH | 345 | 12 | 1.005503 | 0403251,0403104,etc |
| field of view | FOV | 50 | 12 | 1.00091 | 0403180,0403479,etc |
| asymptotic giant branch | AGB | 227 | 12 | 2.0024 | 0403262,0403525,etc |
| white dwarf | WD | 189 | 11 | 1.006425 | 0403040,0403589,etc |
| max planck institute for astronomy | MPIA | 11 | 11 | 1.000452 | 0403325,0403359,etc |
| max planck institute for astrophysics | MPA | 11 | 11 | 1.000452 | 0403325,0403359,etc |
| neutron star | NS | 183 | 10 | 2.002836 | 0403251,0403261,etc |
| intracluster medium | ICM | 206 | 10 | 2.004678 | 0403180,0403103,etc |
| luminosity function | LF | 92 | 10 | 2.002195 | 0403410,0403041,etc |
| wilkinson microwave anisotropy probe | WMAP | 64 | 10 | 2.001699 | 0403055,0403353,etc |
| astrophysical research consortium | ARC | 10 | 10 | 1.000467 | 0403325,0403359,etc |
| pre main sequence | PMS | 197 | 9 | 2.001264 | 0403708,0403062,etc |
| color magnitude diagram | CMD | 95 | 9 | 2.006018 | 0403525,0403410,etc |
| main sequence | MS | 189 | 9 | 1.004916 | 0403525,0403306,etc |
| very long baseline interferometry | VLBI | 99 | 9 | 2.004136 | 0403618,0403642,etc |
| signal to noise | S/N | 57 | 9 | 2.000733 | 0403326,0403456,etc |
| kolmogorov smirnov | K-S | 29 | 8 | 1.000464 | 0403040,0403106,etc |
| large magellanic cloud | LMC | 75 | 8 | 2.001249 | 0403619,0403318,etc |
| red giant branch | RGB | 197 | 8 | 2.004352 | 0403263,0403600,etc |
| polycyclic aromatic hydrocarbon | PAH | 52 | 8 | 1.004534 | 0403708,0403618,etc |
| lyman break galaxy | LBG | 89 | 8 | 1.00209 | 0403544,0403183,etc |
| low surface brightness | LSB | 32 | 8 | 1.001662 | 0403154,0403077,etc |
| rosat all sky survey | RASS | 50 | 8 | 1.00375 | 0403119,0403359,etc |
| planetary nebula | PN | 361 | 8 | 2.002996 | 0403321,0403355,etc |
| supernova remnant | SNR | 267 | 8 | 2.001783 | 0403274,0403313,etc |
| wolf rayet | WR | 141 | 8 | 1.002209 | 0403463,0403482,etc |
| infrared | IR | 200 | 7 | 1.007951 | 0403242,0403618,etc |
| cataclysmic variable | CV | 132 | 7 | 1.001894 | 0403717,0403306,etc |
| low mass x ray binary | LMXB | 128 | 7 | 2.002064 | 0403251,0403306,etc |
| dark energy | DE | 123 | 7 | 1.004183 | 0403480,0403571,etc |
| globular cluster | GC | 407 | 7 | 2.01128 | 0403331,0403071,etc |
| broad absorption line | BAL | 31 | 7 | 1.003096 | 0403618,0403227,etc |
| smoothed particle hydrodynamics | SPH | 85 | 7 | 2.0015 | 0403469,0403044,etc |
| young stellar object | YSO | 137 | 7 | 1.001859 | 0403034,0403483,etc |
| infrared space observatory | ISO | 56 | 7 | 2.000729 | 0403470,0403349,etc |
| very large telescope | VLT | 18 | 7 | 1.000198 | 0403577,0403626,etc |
| wide field camera | WFC | 25 | 7 | 1.000304 | 0403447,0403223,etc |
| colour magnitude diagram | CMD | 108 | 6 | 1.002659 | 0403594,0403245,etc |
| general relativity | GR | 102 | 6 | 1.002013 | 0403619,0403614,etc |
| particle physics and astronomy research council | PPARC | 6 | 6 | 1.000061 | 0403585,0403192,etc |
| inverse compton | IC | 131 | 6 | 1.001377 | 0403180,0403091,etc |
| astronomical image processing system | AIPS | 15 | 6 | 1.000228 | 0403151,0403578,etc |
| big bang nucleosynthesis | BBN | 48 | 6 | 1.001843 | 0403323,0403417,etc |
| star formation | SF | 153 | 6 | 2.004129 | 0403538,0403602,etc |
| chandra deep field south | CDFS | 42 | 6 | 2.000493 | 0403384,0403223,etc |
| two dimensional | 2-D | 34 | 6 | 2.000497 | 0403355,0403342,etc |
| advanced ccd imaging spectrometer | ACIS | 49 | 6 | 1.001186 | 0403016,0403159,etc |
| advection dominated accretion flow | ADAF | 13 | 6 | 1.000516 | 0403460,0403313,etc |
| european southern observatory | ESO | 17 | 6 | 1.000323 | 0403577,0403557,etc |
| full width half maximum | FWHM | 16 | 6 | 1.000372 | 0403447,0403211,etc |
| ultra deep field | UDF | 87 | 5 | 2.007482 | 0403585,0403223,etc |
| galactic center | GC | 74 | 5 | 2.001645 | 0403180,0403158,etc |
| small magellanic cloud | SMC | 81 | 5 | 2.001867 | 0403149,0403318,etc |
| horizontal branch | HB | 102 | 5 | 1.002237 | 0403600,0403277,etc |
| probability distribution function | PDF | 46 | 5 | 1.000734 | 0403600,0403697,etc |
| position angle | PA | 50 | 5 | 1.001787 | 0403199,0403467,etc |
| dwarf spheroidal | dSph | 104 | 5 | 2.002712 | 0403385,0403452,etc |
| gravitational wave | GW | 107 | 5 | 1.002614 | 0403500,0403188,etc |
| extremely red object | ERO | 16 | 5 | 1.000461 | 0403041,0403223,etc |
| all sky monitor | ASM | 35 | 5 | 1.002658 | 0403120,0403625,etc |
| intermediate mass black hole | IMBH | 45 | 5 | 2.00564 | 0403295,0403511,etc |
| quasi periodic oscillation | QPO | 78 | 5 | 2.001905 | 0403341,0403539,etc |
| giant molecular cloud | GMC | 46 | 5 | 2.001181 | 0403252,0403631,etc |
| friedmann robertson walker | FRW | 20 | 5 | 1.000372 | 0403614,0403694,etc |
| intermediate polar | IP | 49 | 5 | 2.00221 | 0403665,0403675,etc |
| zero age main sequence | ZAMS | 35 | 5 | 1.000274 | 0403318,0403017,etc |
| canada france hawaii telescope | CFHT | 19 | 4 | 2.000291 | 0403543,0403118,etc |
| james clerk maxwell telescope | JCMT | 16 | 4 | 1.00064 | 0403368,0403192,etc |
| ultracompact | UC | 18 | 4 | 2.000176 | 0403524,0403689,etc |
| extragalactic background light | EBL | 20 | 4 | 1.001006 | 0403180,0403097,etc |
| magnetohydrodynamic | MHD | 35 | 4 | 2.001299 | 0403122,0403702,etc |
| three dimensional | 3D | 52 | 4 | 1.002841 | 0403122,0403226,etc |
| very high energy | VHE | 35 | 4 | 1.000681 | 0403627,0403097,etc |
| william herschel telescope | WHT | 7 | 4 | 1.00018 | 0403192,0403482,etc |
| hubble deep field north | HDF-N | 7 | 4 | 1.000662 | 0403544,0403642,etc |
| extreme ultraviolet | EUV | 31 | 4 | 2.003365 | 0403168,0403369,etc |
| x ray background | XRB | 33 | 4 | 1.00122 | 0403693,0403100,etc |
| ultraviolet | UV | 45 | 4 | 2.000677 | 0403693,0403618,etc |
| x ray luminosity function | XLF | 27 | 4 | 2.004951 | 0403693,0403079,etc |
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