| 1 | cold dark matter | CDM | 256 | 19 | 1.003277 | 9711336,9711045,etc |
| 2 | cosmic microwave background | CMB | 310 | 18 | 1.0031 | 9711121,9711161,etc |
| 3 | active galactic nucleus | AGN | 155 | 14 | 2.001608 | 9711079,9711113,etc |
| 4 | gamma ray burst | GRB | 321 | 13 | 2.00819 | 9711279,9711217,etc |
| 5 | interstellar medium | ISM | 67 | 12 | 2.000618 | 9711174,9711173,etc |
| 6 | compton gamma ray observatory | CGRO | 68 | 10 | 2.002166 | 9711322,9711346,etc |
| 7 | point spread function | PSF | 100 | 10 | 2.001324 | 9711289,9711144,etc |
| 8 | supernova | SN | 374 | 8 | 2.011575 | 9711196,9711337,etc |
| 9 | initial mass function | IMF | 71 | 8 | 2.00052 | 9711269,9711031,etc |
| 10 | white dwarf | WD | 45 | 7 | 2.000618 | 9711201,9711269,etc |
| 11 | spectral energy distribution | SED | 44 | 7 | 1.000487 | 9711031,9711074,etc |
| 12 | hubble space telescope | HST | 35 | 6 | 2.001387 | 9711224,9711096,etc |
| 13 | luminosity function | LF | 86 | 6 | 1.001623 | 9711116,9711067,etc |
| 14 | nasa/ipac extragalactic database | NED | 8 | 6 | 1.000172 | 9711285,9711302,etc |
| 15 | inverse compton | IC | 67 | 5 | 1.001011 | 9711339,9711212,etc |
| 16 | signal to noise ratio | S/N | 23 | 5 | 1.001473 | 9711019,9711329,etc |
| 17 | quasi periodic oscillation | QPO | 139 | 5 | 2.009195 | 9711222,9711097,etc |
| 18 | supernova remnant | SNR | 230 | 5 | 2.004826 | 9711212,9711177,etc |
| 19 | rosat all sky survey | RASS | 24 | 4 | 2.000927 | 9711158,9711268,etc |
| 20 | las campanas redshift survey | LCRS | 80 | 4 | 2.005225 | 9711227,9711206,etc |
| 21 | deutsche agentur f"ur raumfahrtangelegenheiten | DARA | 5 | 4 | 1.000236 | 9711345,9711171,etc |
| 22 | very large array | VLA | 39 | 4 | 2.001829 | 9711175,9711031,etc |
| 23 | rossi x ray timing explorer | RXTE | 11 | 4 | 1.000457 | 9711171,9711097,etc |
| 24 | european southern observatory | ESO | 12 | 4 | 1.00019 | 9711285,9711065,etc |
| 25 | cosmic microwave background radiation | CMBR | 59 | 4 | 2.002195 | 9711134,9711220,etc |
| 26 | x ray background | XRB | 54 | 4 | 2.003043 | 9711150,9711083,etc |
| 27 | faint object spectrograph | FOS | 31 | 4 | 2.001163 | 9711210,9711324,etc |
| 28 | probability distribution function | PDF | 51 | 4 | 2.000987 | 9711180,9711128,etc |
| 29 | low mass x ray binary | LMXB | 43 | 4 | 2.001372 | 9711071,9711219,etc |
| 30 | cataclysmic variable | CV | 76 | 4 | 2.002783 | 9711115,9711230,etc |
| 31 | near infrared | NIR | 68 | 4 | 2.003011 | 9711065,9711226,etc |
| 32 | narrow field instrument | NFI | 15 | 3 | 1.001422 | 9711279,9711215,etc |
| 33 | correlation function | CF | 48 | 3 | 2.005135 | 9711232,9711134,etc |
| 34 | large magellanic cloud | LMC | 86 | 3 | 2.000937 | 9711224,9711144,etc |
| 35 | star formation rate | SFR | 41 | 3 | 2.000726 | 9711300,9711269,etc |
| 36 | brightest cluster galaxy | BCG | 48 | 3 | 2.006193 | 9711300,9711010,etc |
| 37 | burst and transient source experiment | BATSE | 27 | 3 | 2.000116 | 9711346,9711306,etc |
| 38 | viewing period | VP | 15 | 3 | 1.002504 | 9711345,9711111,etc |
| 39 | very long baseline array | VLBA | 18 | 3 | 2.000952 | 9711175,9711174,etc |
| 40 | william herschel telescope | WHT | 9 | 3 | 1.000189 | 9711171,9711044,etc |
| 41 | all sky monitor | ASM | 12 | 3 | 1.000747 | 9711171,9711164,etc |
| 42 | young stellar object | YSO | 20 | 3 | 1.001215 | 9711003,9711250,etc |
| 43 | friends of friends | FOF | 57 | 3 | 1.00446 | 9711116,9711114,etc |
| 44 | large scale structure | LSS | 52 | 3 | 2.002078 | 9711116,9711040,etc |
| 45 | international ultraviolet explorer | IUE | 14 | 3 | 2.000418 | 9711031,9711210,etc |
| 46 | australia telescope compact array | ATCA | 28 | 3 | 1.000953 | 9711285,9711331,etc |
| 47 | equivalent width | EW | 28 | 3 | 2.000617 | 9711019,9711323,etc |
| 48 | cosmic background explorer | COBE | 21 | 3 | 2.001532 | 9711261,9711220,etc |
| 49 | infrared space observatory | ISO | 24 | 3 | 1.001349 | 9711200,9711149,etc |
| 50 | narrow line region | NLR | 105 | 3 | 1.004617 | 9711302,9711324,etc |
| 51 | infrared | IR | 72 | 3 | 1.006078 | 9711066,9711163,etc |
| 52 | black hole | BH | 69 | 3 | 2.003173 | 9711168,9711129,etc |
| 53 | inverse compton scattering | ICS | 16 | 3 | 1.003019 | 9711107,9711188,etc |
| 54 | hubble deep field | HDF | 77 | 3 | 1.003177 | 9711209,9711355,etc |
| 55 | position sensitive proportional counter | PSPC | 80 | 3 | 2.002314 | 9711071,9711203,etc |
| 56 | red supergiant | RSG | 97 | 3 | 2.002704 | 9711331,9711141,etc |
| 57 | far infrared | FIR | 115 | 3 | 2.002703 | 9711226,9711016,etc |