| active galactic nucleus | AGN | 1117 | 47 | 2.005385 | 0402497,0402303,etc |
| spectral energy distribution | SED | 518 | 43 | 2.001348 | 0402110,0402530,etc |
| cosmic microwave background | CMB | 852 | 41 | 2.00357 | 0402032,0402303,etc |
| star formation rate | SFR | 652 | 25 | 1.002916 | 0402043,0402271,etc |
| nasa/ipac extragalactic database | NED | 55 | 24 | 1.000348 | 0402205,0402303,etc |
| point spread function | PSF | 167 | 22 | 2.00259 | 0402197,0402110,etc |
| interstellar medium | ISM | 174 | 20 | 1.001608 | 0402014,0402600,etc |
| cold dark matter | CDM | 123 | 19 | 1.001275 | 0402032,0402187,etc |
| initial mass function | IMF | 177 | 18 | 2.004735 | 0402271,0402459,etc |
| signal to noise ratio | SNR | 102 | 16 | 1.000585 | 0402633,0402043,etc |
| low mass x ray binary | LMXB | 116 | 15 | 2.002424 | 0402076,0402197,etc |
| gamma ray burst | GRB | 609 | 14 | 2.007152 | 0402497,0402596,etc |
| cataclysmic variable | CV | 304 | 14 | 1.007345 | 0402209,0402273,etc |
| intracluster medium | ICM | 293 | 14 | 2.004369 | 0402242,0402574,etc |
| full width at half maximum | FWHM | 43 | 13 | 1.000597 | 0402110,0402487,etc |
| wilkinson microwave anisotropy probe | WMAP | 231 | 12 | 2.003644 | 0402187,0402322,etc |
| supernova remnant | SNR | 119 | 12 | 2.002286 | 0402598,0402243,etc |
| luminosity function | LF | 611 | 12 | 1.006898 | 0402592,0402242,etc |
| very large array | VLA | 272 | 12 | 1.00761 | 0402274,0402613,etc |
| near infrared | NIR | 161 | 12 | 2.001461 | 0402672,0402352,etc |
| neutron star | NS | 163 | 11 | 2.002411 | 0402507,0402600,etc |
| black hole | BH | 284 | 11 | 1.005071 | 0402043,0402056,etc |
| hubble space telescope | HST | 69 | 11 | 2.000925 | 0402225,0402600,etc |
| young stellar object | YSO | 112 | 11 | 2.000983 | 0402423,0402120,etc |
| two micron all sky survey | 2MASS | 180 | 11 | 2.001263 | 0402531,0402242,etc |
| sloan digital sky survey | SDSS | 301 | 10 | 1.008456 | 0402205,0402366,etc |
| color magnitude diagram | CMD | 141 | 10 | 2.000942 | 0402544,0402197,etc |
| intergalactic medium | IGM | 147 | 10 | 2.001985 | 0402456,0402322,etc |
| astrophysical research consortium | ARC | 12 | 9 | 1.000153 | 0402205,0402209,etc |
| max planck institute for astronomy | MPIA | 9 | 9 | 1.000071 | 0402205,0402209,etc |
| max planck institute for astrophysics | MPA | 9 | 9 | 1.000071 | 0402205,0402209,etc |
| equivalent width | EW | 96 | 9 | 1.001173 | 0402530,0402480,etc |
| globular cluster | GC | 392 | 9 | 1.007425 | 0402592,0402581,etc |
| pre main sequence | PMS | 222 | 9 | 2.002888 | 0402188,0402614,etc |
| cosmic microwave background radiation | CMB | 104 | 9 | 2.000923 | 0402065,0402351,etc |
| supernova | SN | 353 | 9 | 2.011996 | 0402473,0402169,etc |
| broad line region | BLR | 86 | 8 | 2.002215 | 0402318,0402660,etc |
| kitt peak national observatory | KPNO | 27 | 8 | 2.00029 | 0402273,0402341,etc |
| large magellanic cloud | LMC | 121 | 8 | 2.00232 | 0402127,0402607,etc |
| friedmann robertson walker | FRW | 37 | 8 | 1.00069 | 0402065,0402311,etc |
| quasi periodic oscillation | QPO | 179 | 8 | 2.003785 | 0402028,0402561,etc |
| high mass x ray binary | HMXB | 105 | 8 | 1.00184 | 0402621,0402568,etc |
| inverse compton | IC | 44 | 7 | 1.001266 | 0402214,0402303,etc |
| large scale structure | LSS | 22 | 7 | 2.000843 | 0402547,0402533,etc |
| main sequence | MS | 256 | 7 | 2.00362 | 0402592,0402188,etc |
| far ultraviolet | FUV | 111 | 7 | 2.002462 | 0402318,0402241,etc |
| ultraviolet | UV | 230 | 7 | 2.003993 | 0402318,0402613,etc |
| innermost stable circular orbit | ISCO | 33 | 7 | 1.00125 | 0402213,0402056,etc |
| rossi x ray timing explorer | RXTE | 75 | 7 | 2.001948 | 0402600,0402028,etc |
| infrared | IR | 156 | 7 | 1.006386 | 0402423,0402509,etc |
| horizontal branch | HB | 246 | 7 | 2.006362 | 0402400,0402460,etc |
| red giant branch | RGB | 164 | 7 | 2.007825 | 0402460,0402295,etc |
| small magellanic cloud | SMC | 34 | 6 | 1.001934 | 0402303,0402127,etc |
| sunyaev zeldovich | SZ | 176 | 6 | 2.005707 | 0402547,0402065,etc |
| narrow line seyfert 1 | NLS1 | 221 | 6 | 2.00623 | 0402110,0402318,etc |
| william herschel telescope | WHT | 15 | 6 | 1.000451 | 0402530,0402225,etc |
| magnetohydrodynamic | MHD | 48 | 6 | 2.001353 | 0402492,0402669,etc |
| dark matter | DM | 39 | 6 | 2.001608 | 0402274,0402533,etc |
| field of view | FOV | 35 | 6 | 1.000561 | 0402225,0402629,etc |
| european photon imaging camera | EPIC | 79 | 6 | 2.001425 | 0402293,0402619,etc |
| charge transfer inefficiency | CTI | 19 | 6 | 1.000362 | 0402247,0402660,etc |
| big bang nucleosynthesis | BBN | 107 | 6 | 2.003989 | 0402065,0402490,etc |
| narrow line seyfert 1 galaxy | NLS1 | 194 | 6 | 2.004472 | 0402453,0402452,etc |
| equation of state | EOS | 70 | 6 | 1.00172 | 0402360,0402028,etc |
| white dwarf | WD | 62 | 6 | 2.00544 | 0402465,0402230,etc |
| space telescope imaging spectrograph | STIS | 29 | 5 | 2.00041 | 0402497,0402318,etc |
| position angle | PA | 41 | 5 | 1.000791 | 0402507,0402225,etc |
| wide field planetary camera 2 | WFPC2 | 51 | 5 | 2.000741 | 0402197,0402062,etc |
| wide field imager | WFI | 30 | 5 | 1.000483 | 0402197,0402188,etc |
| integrated sachs wolfe | ISW | 20 | 5 | 1.00046 | 0402547,0402210,etc |
| sunyaev zel'dovich | SZ | 478 | 5 | 1.011255 | 0402366,0402333,etc |
| rosat all sky survey | RASS | 58 | 5 | 2.002236 | 0402161,0402247,etc |
| narrow line region | NLR | 26 | 5 | 1.000144 | 0402110,0402268,etc |
| isaac newton telescope | INT | 13 | 5 | 1.000563 | 0402225,0402010,etc |
| markov chain monte carlo | MCMC | 14 | 5 | 2.000985 | 0402359,0402296,etc |
| national radio astronomy observatory | NRAO | 12 | 5 | 1.000193 | 0402359,0402650,etc |
| proportional counter array | PCA | 56 | 5 | 2.001419 | 0402613,0402560,etc |
| infrared space observatory | ISO | 68 | 5 | 1.003719 | 0402068,0402406,etc |
| period luminosity | P-L | 143 | 5 | 1.001978 | 0402424,0402400,etc |
| fast fourier transform | FFT | 37 | 5 | 1.001635 | 0402107,0402621,etc |
| planetary nebula | PN | 172 | 5 | 2.006763 | 0402071,0402538,etc |
| science analysis system | SAS | 19 | 5 | 2.000331 | 0402480,0402221,etc |
| far infrared | FIR | 17 | 5 | 2.000764 | 0402352,0402011,etc |
| rotation measure | RM | 124 | 5 | 1.006704 | 0402574,0402170,etc |
| particle mesh | PM | 40 | 5 | 1.001163 | 0402230,0402115,etc |
| space telescope science institute | STScI | 7 | 4 | 1.000285 | 0402633,0402225,etc |
| power law | PL | 52 | 4 | 2.001467 | 0402197,0402621,etc |
| international celestial reference system | ICRS | 16 | 4 | 1.000294 | 0402197,0402411,etc |
| synchrotron self compton | SSC | 17 | 4 | 2.000452 | 0402303,0402647,etc |
| soft gamma repeater | SGR | 110 | 4 | 1.007428 | 0402176,0402175,etc |
| galactic center | GC | 44 | 4 | 2.001994 | 0402061,0402595,etc |
| united kingdom infrared telescope | UKIRT | 39 | 4 | 2.000167 | 0402171,0402451,etc |
| high energy astrophysics science archive research center | HEASARC | 4 | 4 | 1.00011 | 0402110,0402127,etc |
| optical monitor | OM | 39 | 4 | 2.001464 | 0402530,0402468,etc |
| tidal dwarf galaxy | TDG | 117 | 4 | 2.002196 | 0402274,0402250,etc |
| very long baseline interferometry | VLBI | 83 | 4 | 1.001891 | 0402613,0402473,etc |
| x ray luminosity function | XLF | 116 | 4 | 1.001973 | 0402581,0402140,etc |
| kolmogorov smirnov | K-S | 31 | 4 | 1.002399 | 0402581,0402619,etc |
| power density spectra | PDS | 20 | 4 | 2.000934 | 0402619,0402107,etc |
| reflection grating spectrometer | RGS | 71 | 4 | 2.003232 | 0402660,0402131,etc |
|