| active galactic nucleus | AGN | 454 | 35 | 1.002458 | 0201437,0201271,etc |
| spectral energy distribution | SED | 515 | 33 | 2.002253 | 0201128,0201049,etc |
| interstellar medium | ISM | 353 | 31 | 1.002926 | 0201169,0201128,etc |
| cold dark matter | CDM | 302 | 26 | 2.004059 | 0201352,0201187,etc |
| cosmic microwave background | CMB | 497 | 25 | 2.003194 | 0201075,0201133,etc |
| point spread function | PSF | 127 | 18 | 1.001002 | 0201162,0201231,etc |
| initial mass function | IMF | 151 | 17 | 1.002056 | 0201352,0201078,etc |
| supernova | SN | 704 | 15 | 2.013526 | 0201169,0201210,etc |
| star formation rate | SFR | 256 | 15 | 1.002364 | 0201467,0201471,etc |
| gamma ray burst | GRB | 693 | 14 | 2.005902 | 0201461,0201342,etc |
| hubble space telescope | HST | 126 | 14 | 2.001177 | 0201166,0201017,etc |
| intergalactic medium | IGM | 167 | 14 | 2.001953 | 0201514,0201342,etc |
| nasa/ipac extragalactic database | NED | 17 | 14 | 1.000288 | 0201458,0201272,etc |
| asymptotic giant branch | AGB | 223 | 13 | 2.002879 | 0201128,0201303,etc |
| very large array | VLA | 82 | 12 | 2.000769 | 0201441,0201062,etc |
| full width at half maximum | FWHM | 63 | 11 | 2.00133 | 0201504,0201184,etc |
| infrared space observatory | ISO | 302 | 11 | 2.003339 | 0201128,0201184,etc |
| supernova remnant | SNR | 162 | 10 | 2.00441 | 0201169,0201351,etc |
| near infrared | NIR | 193 | 10 | 1.002045 | 0201543,0201128,etc |
| far infrared | FIR | 105 | 10 | 2.003347 | 0201128,0201358,etc |
| dark matter | DM | 199 | 10 | 2.008437 | 0201222,0201402,etc |
| extremely red object | ERO | 64 | 9 | 1.004911 | 0201543,0201444,etc |
| large magellanic cloud | LMC | 127 | 9 | 2.001722 | 0201340,0201453,etc |
| infrared | IR | 419 | 9 | 2.010549 | 0201184,0201489,etc |
| james clerk maxwell telescope | JCMT | 28 | 8 | 1.000358 | 0201128,0201180,etc |
| black hole | BH | 146 | 8 | 1.002303 | 0201437,0201173,etc |
| equation of state | EOS | 120 | 8 | 2.003172 | 0201261,0201123,etc |
| sloan digital sky survey | SDSS | 92 | 8 | 2.002691 | 0201336,0201527,etc |
| position angle | PA | 73 | 8 | 2.004272 | 0201231,0201144,etc |
| intracluster medium | ICM | 96 | 8 | 1.002769 | 0201342,0201313,etc |
| cataclysmic variable | CV | 137 | 7 | 1.002663 | 0201166,0201233,etc |
| signal to noise ratio | S/N | 62 | 7 | 1.001419 | 0201184,0201537,etc |
| equivalent width | EW | 94 | 7 | 1.001767 | 0201184,0201211,etc |
| adaptive optics | AO | 89 | 7 | 2.00209 | 0201231,0201393,etc |
| isaac newton telescope | INT | 20 | 7 | 1.000186 | 0201537,0201361,etc |
| mid infrared | MIR | 102 | 6 | 2.001581 | 0201128,0201304,etc |
| globular cluster | GC | 377 | 6 | 2.005928 | 0201443,0201011,etc |
| big bang nucleosynthesis | BBN | 9 | 6 | 1.000257 | 0201443,0201298,etc |
| color magnitude diagram | CMD | 76 | 6 | 2.000943 | 0201166,0201297,etc |
| broad line region | BLR | 69 | 6 | 2.001677 | 0201437,0201458,etc |
| friedmann robertson walker | FRW | 28 | 6 | 1.001109 | 0201056,0201229,etc |
| warm dark matter | WDM | 54 | 6 | 1.00458 | 0201222,0201520,etc |
| main sequence | MS | 73 | 6 | 2.001376 | 0201453,0201217,etc |
| red giant branch | RGB | 296 | 6 | 1.00476 | 0201297,0201096,etc |
| ultraluminous infrared galaxy | ULIRG | 78 | 6 | 2.001425 | 0201104,0201426,etc |
| narrow line region | NLR | 20 | 5 | 1.000803 | 0201543,0201458,etc |
| high mass x ray binary | HMXB | 44 | 5 | 1.000847 | 0201302,0201239,etc |
| small magellanic cloud | SMC | 188 | 5 | 2.005599 | 0201351,0201255,etc |
| signal to noise | S/N | 15 | 5 | 2.000196 | 0201437,0201214,etc |
| tully fisher | TF | 37 | 5 | 1.003802 | 0201406,0201272,etc |
| low surface brightness | LSB | 68 | 5 | 1.000995 | 0201352,0201141,etc |
| low mass x ray binary | LMXB | 48 | 5 | 1.001159 | 0201339,0201550,etc |
| horizontal branch | HB | 141 | 5 | 1.007953 | 0201123,0201297,etc |
| luminosity function | LF | 70 | 5 | 2.002221 | 0201098,0201219,etc |
| ultra luminous infrared galaxy | ULIRG | 21 | 5 | 1.000389 | 0201180,0201209,etc |
| nasa extragalactic database | NED | 8 | 5 | 1.000242 | 0201447,0201178,etc |
| anglo australian telescope | AAT | 19 | 5 | 1.001266 | 0201003,0201494,etc |
| extragalactic background light | EBL | 106 | 5 | 2.003611 | 0201299,0201426,etc |
| distribution function | DF | 95 | 4 | 2.002609 | 0201154,0201086,etc |
| space telescope imaging spectrograph | STIS | 57 | 4 | 2.000876 | 0201351,0201266,etc |
| local standard of rest | LSR | 8 | 4 | 1.000162 | 0201351,0201449,etc |
| magnetohydrodynamic | MHD | 163 | 4 | 2.004383 | 0201261,0201195,etc |
| quasi periodic oscillation | QPO | 89 | 4 | 1.012387 | 0201339,0201390,etc |
| magnetohydrodynamical | MHD | 158 | 4 | 2.004635 | 0201083,0201195,etc |
| roche lobe overflow | RLOF | 116 | 4 | 1.001658 | 0201239,0201457,etc |
| common envelope | CE | 107 | 4 | 2.000816 | 0201239,0201220,etc |
| zero age main sequence | ZAMS | 14 | 4 | 1.000584 | 0201239,0201487,etc |
| planetary nebula | PN | 146 | 4 | 2.010347 | 0201303,0201357,etc |
| line of sight | LOS | 34 | 4 | 1.000435 | 0201223,0201062,etc |
| high energy astrophysics science archive research center | HEASARC | 5 | 4 | 1.000116 | 0201063,0201134,etc |
| anomalous x ray pulsar | AXP | 71 | 4 | 2.003162 | 0201380,0201158,etc |
| polycyclic aromatic hydrocarbon | PAH | 98 | 4 | 2.009554 | 0201304,0201471,etc |
| rossi x ray timing explorer | RXTE | 17 | 4 | 1.000624 | 0201080,0201468,etc |
| proportional counter unit | PCU | 23 | 4 | 1.000865 | 0201080,0201134,etc |
| rayleigh taylor | RT | 56 | 4 | 2.003415 | 0201271,0201423,etc |
| australia telescope compact array | ATCA | 25 | 4 | 1.000386 | 0201532,0201091,etc |
| kolmogorov smirnov | KS | 14 | 4 | 1.000209 | 0201532,0201435,etc |
| field of view | FOV | 22 | 4 | 2.000365 | 0201491,0201004,etc |
| william herschel telescope | WHT | 10 | 4 | 1.000297 | 0201361,0201411,etc |
| simple stellar population | SSP | 33 | 4 | 2.002307 | 0201207,0201013,etc |
| fundamental plane | FP | 125 | 4 | 1.004844 | 0201017,0201402,etc |
| white dwarf | WD | 105 | 4 | 2.00289 | 0201217,0201226,etc |
| planetary camera | PC | 48 | 4 | 1.000959 | 0201062,0201185,etc |
| synchrotron self compton | SSC | 19 | 4 | 1.00033 | 0201395,0201116,etc |
| nordic optical telescope | NOT | 5 | 4 | 1.000561 | 0201282,0201088,etc |
| ultraviolet | UV | 63 | 4 | 2.001939 | 0201494,0201065,etc |
| hubble deep field south | HDF-S | 36 | 4 | 1.000415 | 0201510,0201506,etc |
| hubble deep field | HDF | 153 | 4 | 1.003999 | 0201181,0201492,etc |
| interplanetary network | IPN | 44 | 3 | 2.005469 | 0201461,0201374,etc |
| united kingdom infrared telescope | UKIRT | 17 | 3 | 1.000499 | 0201543,0201184,etc |
| subgiant branch | SGB | 24 | 3 | 1.002787 | 0201443,0201244,etc |
| monte carlo | MC | 28 | 3 | 1.002 | 0201443,0201287,etc |
| wide field and planetary camera 2 | WFPC2 | 45 | 3 | 2.000496 | 0201166,0201185,etc |
| westerbork synthesis radio telescope | WSRT | 31 | 3 | 1.000846 | 0201459,0201061,etc |
| luminous blue variable | LBV | 33 | 3 | 2.000529 | 0201184,0201105,etc |
| dwarf spheroidal | dSph | 45 | 3 | 1.00197 | 0201011,0201297,etc |
| dispersion measure | DM | 9 | 3 | 1.0003 | 0201005,0201378,etc |
| hubble deep field north | HDFN | 49 | 3 | 2.001381 | 0201444,0201290,etc |
| south african astronomical observatory | SAAO | 11 | 3 | 1.000342 | 0201191,0201256,etc |
| soft gamma ray repeater | SGR | 42 | 3 | 2.004946 | 0201380,0201158,etc |
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