| active galactic nucleus | AGN | 945 | 51 | 1.00363 | 0309605,0309299,etc |
| spectral energy distribution | SED | 405 | 41 | 2.001571 | 0309615,0309068,etc |
| cosmic microwave background | CMB | 602 | 35 | 2.002988 | 0309374,0309694,etc |
| interstellar medium | ISM | 259 | 33 | 1.001363 | 0309786,0309214,etc |
| initial mass function | IMF | 309 | 28 | 1.002191 | 0309197,0309558,etc |
| star formation rate | SFR | 269 | 27 | 1.002489 | 0309141,0309521,etc |
| gamma ray burst | GRB | 1092 | 26 | 1.007348 | 0309557,0309360,etc |
| nasa/ipac extragalactic database | NED | 42 | 26 | 1.000309 | 0309377,0309568,etc |
| point spread function | PSF | 203 | 25 | 2.002484 | 0309068,0309737,etc |
| cold dark matter | CDM | 239 | 25 | 1.002213 | 0309374,0309375,etc |
| supernova | SN | 1432 | 20 | 2.012061 | 0309786,0309417,etc |
| asymptotic giant branch | AGB | 321 | 20 | 1.003701 | 0309197,0309358,etc |
| sloan digital sky survey | SDSS | 314 | 20 | 2.002823 | 0309701,0309521,etc |
| luminosity function | LF | 410 | 17 | 1.004653 | 0309296,0309657,etc |
| main sequence | MS | 196 | 16 | 2.002349 | 0309194,0309001,etc |
| equivalent width | EW | 218 | 16 | 2.001873 | 0309417,0309064,etc |
| very large array | VLA | 126 | 15 | 2.001163 | 0309557,0309481,etc |
| intergalactic medium | IGM | 229 | 15 | 1.001918 | 0309625,0309646,etc |
| dark matter | DM | 568 | 15 | 2.005834 | 0309671,0309312,etc |
| intracluster medium | ICM | 209 | 15 | 2.002542 | 0309019,0309228,etc |
| color magnitude diagram | CMD | 171 | 14 | 2.00157 | 0309001,0309358,etc |
| quasi periodic oscillation | QPO | 271 | 14 | 2.007769 | 0309549,0309345,etc |
| supernova remnant | SNR | 220 | 14 | 1.004119 | 0309324,0309241,etc |
| low mass x ray binary | LMXB | 70 | 13 | 1.001394 | 0309400,0309630,etc |
| advanced camera for surveys | ACS | 148 | 13 | 2.002197 | 0309068,0309333,etc |
| broad line region | BLR | 186 | 13 | 1.005038 | 0309701,0309521,etc |
| red giant branch | RGB | 171 | 13 | 2.00218 | 0309358,0309614,etc |
| hubble space telescope | HST | 101 | 12 | 1.000611 | 0309068,0309475,etc |
| great observatories origins deep survey | GOODS | 147 | 12 | 2.002477 | 0309068,0309739,etc |
| white dwarf | WD | 479 | 12 | 2.009675 | 0309001,0309168,etc |
| rossi x ray timing explorer | RXTE | 81 | 12 | 2.001627 | 0309626,0309345,etc |
| black hole | BH | 249 | 12 | 2.005375 | 0309168,0309630,etc |
| very large telescope | VLT | 63 | 12 | 1.001387 | 0309081,0309263,etc |
| wilkinson microwave anisotropy probe | WMAP | 146 | 12 | 1.002456 | 0309337,0309434,etc |
| neutron star | NS | 76 | 11 | 1.00106 | 0309400,0309168,etc |
| near infrared | NIR | 165 | 11 | 2.001773 | 0309356,0309481,etc |
| max planck institute for astronomy | MPIA | 11 | 11 | 1.000086 | 0309551,0309641,etc |
| max planck institute for astrophysics | MPA | 11 | 11 | 1.000086 | 0309551,0309641,etc |
| horizontal branch | HB | 334 | 11 | 1.006594 | 0309296,0309794,etc |
| signal to noise ratio | S/N | 38 | 10 | 2.000258 | 0309012,0309072,etc |
| large magellanic cloud | LMC | 89 | 10 | 2.007265 | 0309614,0309475,etc |
| far infrared | far-IR | 193 | 10 | 2.002471 | 0309453,0309690,etc |
| chandra deep field south | CDF-S | 105 | 9 | 1.001997 | 0309068,0309089,etc |
| hubble deep field north | HDF-N | 64 | 9 | 1.002085 | 0309068,0309263,etc |
| globular cluster | GC | 595 | 9 | 2.005866 | 0309558,0309188,etc |
| inverse compton | IC | 92 | 9 | 1.002074 | 0309681,0309737,etc |
| kolmogorov smirnov | K-S | 51 | 9 | 2.001242 | 0309218,0309041,etc |
| infrared | IR | 471 | 9 | 1.004947 | 0309727,0309082,etc |
| proportional counter array | PCA | 39 | 9 | 2.001157 | 0309345,0309047,etc |
| astrophysical research consortium | ARC | 9 | 9 | 1.000083 | 0309551,0309641,etc |
| anomalous x ray pulsar | AXP | 131 | 8 | 2.004051 | 0309219,0309241,etc |
| ultraluminous infrared galaxy | ULIRG | 114 | 8 | 1.006715 | 0309012,0309477,etc |
| two micron all sky survey | 2MASS | 79 | 8 | 1.003418 | 0309194,0309794,etc |
| very long baseline array | VLBA | 122 | 8 | 2.002479 | 0309324,0309647,etc |
| advanced ccd imaging spectrometer | ACIS | 61 | 8 | 1.001702 | 0309737,0309229,etc |
| full width at half maximum | FWHM | 51 | 8 | 2.001462 | 0309072,0309114,etc |
| small magellanic cloud | SMC | 78 | 8 | 1.002646 | 0309581,0309271,etc |
| signal to noise | S/N | 27 | 8 | 1.000411 | 0309218,0309123,etc |
| lyman break galaxy | LBG | 692 | 8 | 2.009211 | 0309594,0309641,etc |
| ultraviolet | UV | 69 | 8 | 1.001767 | 0309594,0309249,etc |
| smoothed particle hydrodynamics | SPH | 66 | 8 | 2.00068 | 0309829,0309497,etc |
| extremely red object | ERO | 101 | 7 | 2.005239 | 0309068,0309071,etc |
| pre main sequence | PMS | 136 | 7 | 2.002947 | 0309481,0309218,etc |
| space telescope imaging spectrograph | STIS | 37 | 7 | 1.000884 | 0309651,0309296,etc |
| field of view | FoV | 32 | 7 | 2.001376 | 0309168,0309630,etc |
| new technology telescope | NTT | 17 | 7 | 1.000339 | 0309081,0309091,etc |
| astronomical image processing system | AIPS | 21 | 7 | 1.000314 | 0309647,0309042,etc |
| star formation history | SFH | 133 | 7 | 2.003476 | 0309688,0309050,etc |
| intra cluster medium | ICM | 53 | 7 | 1.001068 | 0309688,0309755,etc |
| fast fourier transform | FFT | 53 | 7 | 1.000705 | 0309745,0309042,etc |
| milky way | MW | 64 | 7 | 2.00342 | 0309223,0309753,etc |
| very long baseline interferometry | VLBI | 20 | 6 | 2.000684 | 0309719,0309744,etc |
| x ray flashe | XRF | 273 | 6 | 2.007926 | 0309360,0309714,etc |
| equation of state | EOS | 52 | 6 | 2.002413 | 0309374,0309724,etc |
| cataclysmic variable | CV | 113 | 6 | 2.003084 | 0309168,0309208,etc |
| infrared space observatory | ISO | 73 | 6 | 2.001677 | 0309475,0309777,etc |
| weakly interacting massive particle | WIMP | 72 | 6 | 2.00534 | 0309621,0309704,etc |
| early data release | EDR | 31 | 6 | 2.000763 | 0309641,0309659,etc |
| planetary nebula | PN | 59 | 6 | 1.00447 | 0309086,0309282,etc |
| probability distribution function | PDF | 40 | 6 | 1.001008 | 0309116,0309246,etc |
| synchrotron self compton | SSC | 44 | 6 | 2.000886 | 0309443,0309285,etc |
| red supergiant | RSG | 93 | 6 | 2.002565 | 0309774,0309473,etc |
| soft gamma ray repeater | SGR | 18 | 5 | 1.000608 | 0309219,0309745,etc |
| all sky monitor | ASM | 30 | 5 | 1.001008 | 0309400,0309568,etc |
| radial velocity | RV | 62 | 5 | 2.002006 | 0309825,0309021,etc |
| high mass x ray binary | HMXRB | 18 | 5 | 2.000215 | 0309558,0309654,etc |
| giant molecular cloud | GMC | 38 | 5 | 1.000756 | 0309080,0309153,etc |
| magnetohydrodynamic | MHD | 24 | 5 | 1.000896 | 0309080,0309033,etc |
| local standard of rest | LSR | 28 | 5 | 2.00049 | 0309805,0309079,etc |
| wide field camera | WFC | 15 | 5 | 1.001074 | 0309626,0309455,etc |
| three dimensional | 3D | 52 | 5 | 2.00388 | 0309013,0309342,etc |
| burst and transient source experiment | BATSE | 48 | 5 | 1.00165 | 0309455,0309654,etc |
| blue horizontal branch | BHB | 171 | 5 | 2.008289 | 0309794,0309162,etc |
| polycyclic aromatic hydrocarbon | PAH | 69 | 5 | 2.001993 | 0309674,0309018,etc |
| digitized sky survey | DSS | 24 | 5 | 1.001221 | 0309745,0309780,etc |
| soft x ray transient | SXT | 58 | 5 | 1.00247 | 0309047,0309811,etc |
| national radio astronomy observatory | NRAO | 11 | 5 | 1.0001 | 0309791,0309078,etc |
| dwarf irregular | dIrr | 19 | 5 | 1.001015 | 0309050,0309020,etc |
| position angle | PA | 23 | 5 | 1.002363 | 0309333,0309407,etc |
| ultraluminous x ray source | ULX | 128 | 4 | 2.005574 | 0309558,0309035,etc |
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