| proportional counter array | PCA | 468 | 66 | 1.592124 | 0101459,0101540,etc |
| space telescope imaging spectrograph | STIS | 740 | 65 | 1.694298 | 0101548,0101307,etc |
| all sky monitor | ASM | 549 | 63 | 1.731777 | 0101452,0101045,etc |
| inverse compton | IC | 1068 | 62 | 1.905215 | 0101145,0101301,etc |
| advanced ccd imaging spectrometer | ACIS | 564 | 60 | 1.501232 | 0101444,0101494,etc |
| kolmogorov smirnov | K-S | 285 | 59 | 1.119185 | 0101486,0101155,etc |
| low surface brightness | LSB | 906 | 53 | 1.324447 | 0101135,0101276,etc |
| signal to noise | S/N | 187 | 52 | 1.327213 | 0101032,0101153,etc |
| sunyaev zel'dovich | SZ | 1607 | 43 | 1.654796 | 0101418,0101529,etc |
| synchrotron self compton | SSC | 340 | 40 | 1.701605 | 0101382,0101422,etc |
| wolf rayet | WR | 862 | 40 | 1.603798 | 0102228,0102383,etc |
| high resolution imager | HRI | 431 | 38 | 1.765147 | 0101437,0101410,etc |
| astrophysical research consortium | ARC | 55 | 38 | 1.000146 | 0103029,0103228,etc |
| rosat all sky survey | RASS | 195 | 37 | 1.109256 | 0101410,0101525,etc |
| max planck institute for astronomy | MPIA | 46 | 37 | 1.000134 | 0105401,0105138,etc |
| colour magnitude diagram | CMD | 650 | 35 | 1.687333 | 0101541,0101107,etc |
| wide field camera | WFC | 192 | 33 | 1.33486 | 0102369,0102080,etc |
| intra cluster medium | ICM | 354 | 31 | 1.937606 | 0101418,0101060,etc |
| wide field planetary camera 2 | WFPC2 | 341 | 31 | 1.710795 | 0102214,0102502,etc |
| dwarf spheroidal | dSph | 371 | 30 | 1.601749 | 0101456,0101276,etc |
| proportional counter unit | PCU | 100 | 26 | 1.19266 | 0101540,0101026,etc |
| blue compact dwarf | BCD | 491 | 26 | 1.464608 | 0101480,0101250,etc |
| ultra luminous infrared galaxy | ULIRG | 296 | 26 | 1.73309 | 0101472,0101479,etc |
| burst and transient source experiment | BATSE | 306 | 25 | 1.482285 | 0101163,0101045,etc |
| star formation history | SFH | 536 | 24 | 1.586072 | 0101074,0101534,etc |
| nasa extragalactic database | NED | 75 | 23 | 1.08739 | 0101167,0101405,etc |
| full width half maximum | FWHM | 96 | 23 | 1.30491 | 0101110,0101295,etc |
| faint object spectrograph | FOS | 216 | 23 | 1.522481 | 0101064,0101419,etc |
| black hole candidate | BHC | 309 | 22 | 1.684128 | 0101459,0101305,etc |
| low mass x ray binaries | LMXB | 246 | 21 | 1.667656 | 0101160,0101505,etc |
| charge transfer inefficiency | CTI | 348 | 21 | 1.478038 | 0102151,0102370,etc |
| goddard high resolution spectrograph | GHRS | 179 | 20 | 1.650441 | 0101037,0101064,etc |
| friedmann robertson walker | FRW | 90 | 20 | 1.100688 | 0101040,0101544,etc |
| planetary camera | PC | 211 | 20 | 2.000792 | 0103121,0103440,etc |
| x ray luminosity function | XLF | 237 | 18 | 1.891053 | 0101437,0101529,etc |
| chandra x ray center | CXC | 52 | 17 | 1.000359 | 0102468,0102151,etc |
| high energy transmission grating spectrometer | HETGS | 112 | 17 | 1.177241 | 0103203,0103215,etc |
| narrow field instruments | NFI | 64 | 16 | 1.250394 | 0101505,0101045,etc |
| tully fisher | TF | 321 | 16 | 1.253008 | 0101361,0101499,etc |
| reflection grating spectrometer | RGS | 104 | 16 | 1.251177 | 0104125,0104342,etc |
| short wavelength spectrometer | SWS | 243 | 15 | 1.40234 | 0101054,0101153,etc |
| charge transfer efficiency | CTE | 49 | 15 | 1.000142 | 0101235,0101485,etc |
| monte carlo | MC | 115 | 15 | 1.467812 | 0101183,0101186,etc |
| narrow line seyfert 1 galaxy | NLS1 | 359 | 15 | 1.801512 | 0101184,0101410,etc |
| power density spectra | PDS | 129 | 15 | 1.734574 | 0101066,0101393,etc |
| press schechter | PS | 187 | 15 | 1.401303 | 0101529,0101528,etc |
| ministry for university and research | MURST | 15 | 15 | 1.000059 | 0102427,0102127,etc |
| color magnitude | C-M | 170 | 15 | 1.800947 | 0102350,0102090,etc |
| integrated sachs wolfe | ISW | 145 | 15 | 1.467977 | 0104162,0104112,etc |
| period luminosity | P-L | 171 | 14 | 1.430639 | 0101125,0101126,etc |
| high energy x ray timing experiment | HEXTE | 111 | 14 | 1.429488 | 0101396,0101417,etc |
| soft gamma ray repeater | SGR | 521 | 14 | 1.721428 | 0102049,0102097,etc |
| optical transient | OT | 208 | 14 | 1.788269 | 0102234,0102158,etc |
| power law | PL | 129 | 14 | 1.429765 | 0103171,0103273,etc |
| high surface brightness | HSB | 192 | 13 | 1.15456 | 0101404,0101276,etc |
| cosmic infrared background | CIB | 421 | 13 | 1.61711 | 0101259,0101472,etc |
| wide field and planetary camera 2 | WFPC2 | 155 | 13 | 1.769967 | 0102369,0102312,etc |
| two dimensional | 2D | 96 | 12 | 1.00036 | 0101501,0101397,etc |
| medium energy grating | MEG | 72 | 12 | 1.417423 | 0104125,0104035,etc |
| the red giant branch | TRGB | 164 | 12 | 2.001677 | 0105339,0105357,etc |
| broad emission line region | BLR | 116 | 12 | 1.8353 | 0106419,0106242,etc |
| palomar green | PG | 146 | 11 | 1.820275 | 0101270,0101405,etc |
| long wavelength spectrometer | LWS | 98 | 11 | 1.638063 | 0101054,0101256,etc |
| dwarf irregular | dI | 137 | 11 | 1.72927 | 0101480,0101250,etc |
| greisen zatsepin kuzmin | GZK | 66 | 11 | 1.183025 | 0102101,0102077,etc |
| near infrared camera and multi object spectrometer | NICMOS | 186 | 11 | 1.819001 | 0102263,0102312,etc |
| hot bottom burning | HBB | 49 | 11 | 1.182405 | 0103003,0103337,etc |
| european photon imaging camera | EPIC | 74 | 11 | 1.45542 | 0108057,0108477,etc |
| eso imaging survey | EIS | 185 | 10 | 1.601323 | 0102016,0102132,etc |
| high energy grating | HEG | 50 | 10 | 1.300466 | 0104125,0104035,etc |
| self interacting dark matter | SIDM | 87 | 9 | 1.001281 | 0101349,0101067,etc |
| very high energy | VHE | 66 | 9 | 1.556821 | 0101498,0101496,etc |
| 2 micron all sky survey | 2MASS | 166 | 9 | 1.003729 | 0101463,0101321,etc |
| low energy concentrator spectrometer | LECS | 74 | 9 | 1.44553 | 0101045,0101060,etc |
| hubble deep field north | HDF-N | 84 | 9 | 1.556747 | 0101491,0101445,etc |
| high energy transmission grating | HETG | 63 | 9 | 1.445316 | 0101065,0101299,etc |
| globular cluster luminosity function | GCLF | 109 | 9 | 1.444955 | 0102374,0102113,etc |
| power density spectrum | PDS | 98 | 9 | 1.779335 | 0103320,0103182,etc |
| narrow line seyfert 1 | NLS1 | 162 | 9 | 1.558969 | 0104203,0104125,etc |
| innermost stable circular orbit | ISCO | 109 | 9 | 1.446142 | 0104487,0104408,etc |
| accretion disk corona | ADC | 81 | 9 | 1.223392 | 0104171,0104356,etc |
| carbon oxygen | CO | 94 | 8 | 1.751316 | 0101047,0101343,etc |
| collision induced absorption | CIA | 28 | 8 | 1.250651 | 0101307,0101021,etc |
| pulse invariant | PI | 37 | 8 | 1.25023 | 0101052,0101162,etc |
| rayleigh taylor | R-T | 52 | 8 | 1.750926 | 0101237,0101010,etc |
| galactic globular cluster | GGC | 157 | 8 | 1.501446 | 0102331,0102029,etc |
| herbig haro | HH | 458 | 8 | 1.633183 | 0103482,0103190,etc |
| warm neutral medium | WNM | 55 | 8 | 1.001653 | 0103126,0103119,etc |
| low resolution imaging spectrograph | LRIS | 18 | 8 | 1.000806 | 0104129,0104108,etc |
| einstein de sitter | EdS | 38 | 8 | 1.000263 | 0104371,0104271,etc |
| wide field cameras | WFC | 68 | 8 | 1.502512 | 0105112,0105446,etc |
| faint object camera | FOC | 44 | 8 | 1.250371 | 0106344,0106548,etc |
| high frequency instrument | HFI | 68 | 8 | 1.00217 | 0106152,0106543,etc |
| high resolution mirror assembly | HRMA | 33 | 7 | 1.286297 | 0101494,0101557,etc |
| particle physics and astronomy research council | PPARC | 15 | 7 | 1.000177 | 0101346,0101189,etc |
| imaging atmospheric cherenkov telescope | IACT | 59 | 7 | 1.715949 | 0101496,0101030,etc |
| discrete wavelet transform | DWT | 264 | 7 | 2.004197 | 0102461,0102160,etc |
| compact steep spectrum | CSS | 23 | 7 | 1.429257 | 0102083,0102293,etc |
| three dimensional | 3D | 92 | 7 | 1.715418 | 0103522,0103199,etc |
| lyon meudon extragalactic database | LEDA | 12 | 7 | 1.00008 | 0103266,0103442,etc |
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