| 1 | advanced camera for surveys | ACS | 114 | 11 | 2.002105 | 0502493,0502258,etc |
| 2 | kolmogorov smirnov | KS | 44 | 9 | 1.000223 | 0502302,0502166,etc |
| 3 | astrophysical research consortium | ARC | 13 | 9 | 1.000145 | 0502117,0502055,etc |
| 4 | max planck institute for astronomy | MPIA | 8 | 8 | 1.000161 | 0502117,0502055,etc |
| 5 | friedmann robertson walker | FRW | 23 | 8 | 1.000443 | 0502212,0502234,etc |
| 6 | soft gamma ray repeater | SGR | 103 | 7 | 1.003193 | 0502320,0502417,etc |
| 7 | innermost stable circular orbit | ISCO | 13 | 5 | 1.000491 | 0502140,0502461,etc |
| 8 | colour magnitude diagram | CMD | 129 | 5 | 2.001494 | 0502508,0502451,etc |
| 9 | three dimensional | 3-D | 61 | 5 | 2.000793 | 0502378,0502289,etc |
| 10 | rayleigh taylor | R-T | 37 | 4 | 2.000712 | 0502146,0502104,etc |
| 11 | particle physics and astronomy research council | PPARC | 4 | 4 | 1.000104 | 0502385,0502063,etc |
| 12 | sunyaev zel'dovich | SZ | 12 | 4 | 1.000139 | 0502234,0502413,etc |
| 13 | space telescope imaging spectrograph | STIS | 52 | 4 | 2.001021 | 0502493,0502378,etc |
| 14 | wide field camera | WFC | 8 | 4 | 1.000476 | 0502300,0502420,etc |
| 15 | signal to noise | S/N | 27 | 4 | 1.000298 | 0502400,0502467,etc |
| 16 | science analysis system | SAS | 8 | 4 | 1.000501 | 0502461,0502063,etc |
| 17 | dwarf spheroidal | dSph | 65 | 4 | 1.001954 | 0502126,0502525,etc |
| 18 | markov chain monte carlo | MCMC | 8 | 4 | 1.000195 | 0502063,0502136,etc |
| 19 | intra cluster medium | ICM | 22 | 4 | 1.001198 | 0502444,0502153,etc |
| 20 | full width half maximum | FWHM | 23 | 4 | 1.00055 | 0502072,0502312,etc |
| 21 | kelvin helmholtz | K-H | 34 | 3 | 2.000501 | 0502146,0502104,etc |
| 22 | infrared spectrograph | IRS | 38 | 3 | 1.001497 | 0502103,0502569,etc |
| 23 | multiband imaging photometer for spitzer | MIPS | 95 | 3 | 2.000418 | 0502590,0502080,etc |
| 24 | photodissociation region | PDR | 11 | 3 | 2.000257 | 0502504,0502218,etc |
| 25 | star formation history | SFH | 27 | 3 | 2.000552 | 0502246,0502311,etc |
| 26 | ultra violet | UV | 39 | 3 | 2.000908 | 0502067,0502082,etc |
| 27 | warm neutral medium | WNM | 17 | 3 | 1.000041 | 0502067,0502327,etc |
| 28 | synchrotron self compton | SSC | 9 | 3 | 1.001222 | 0502300,0502424,etc |
| 29 | faint object spectrograph | FOS | 5 | 3 | 1.000122 | 0502051,0502433,etc |
| 30 | long wavelength spectrometer | LWS | 57 | 3 | 1.001691 | 0502400,0502516,etc |
| 31 | wolf rayet | WR | 19 | 3 | 1.000894 | 0502400,0502074,etc |
| 32 | low surface brightness | LSB | 86 | 3 | 2.005674 | 0502166,0502231,etc |
| 33 | atacama large millimeter array | ALMA | 21 | 3 | 1.000917 | 0502218,0502586,etc |
| 34 | all sky monitor | ASM | 59 | 3 | 2.001271 | 0502498,0502008,etc |
| 35 | magneto rotational instability | MRI | 23 | 3 | 1.00134 | 0502240,0502519,etc |
| 36 | sunyaev zeldovich effect | SZE | 55 | 3 | 2.006009 | 0502226,0502444,etc |
| 37 | position velocity | P-V | 13 | 3 | 2.000261 | 0502101,0502036,etc |
| 38 | ultra luminous x ray source | ULX | 142 | 3 | 2.004553 | 0502114,0502265,etc |
| 39 | low luminosity agn | LLAGN | 13 | 3 | 2.000193 | 0502114,0502109,etc |
| 40 | international time programme | ITP | 3 | 3 | 1.000437 | 0502397,0502395,etc |
| 41 | european northern observatory | ENO | 4 | 3 | 1.000279 | 0502397,0502395,etc |
| 42 | particle in cell | PIC | 8 | 3 | 1.001052 | 0502331,0502372,etc |
| 43 | integrated sachs wolfe | iSW | 33 | 3 | 1.002328 | 0502208,0502139,etc |
| 44 | palomar testbed interferometer | PTI | 33 | 3 | 1.001084 | 0502293,0502250,etc |
| 45 | medium energy grating | MEG | 37 | 3 | 2.000699 | 0502379,0502128,etc |
| 46 | high energy grating | HEG | 103 | 3 | 1.004378 | 0502379,0502128,etc |
| 47 | dwarf irregular | dIrr | 32 | 3 | 2.001019 | 0502525,0502402,etc |