| 1 | active galactic nucleus | AGN | 576 | 31 | 1.006029 | 0202405,0202245,etc |
| 2 | cosmic microwave background | CMB | 402 | 30 | 2.002599 | 0202007,0202256,etc |
| 3 | spectral energy distribution | SED | 335 | 28 | 2.002106 | 0202161,0202418,etc |
| 4 | point spread function | PSF | 217 | 22 | 1.00211 | 0202161,0202077,etc |
| 5 | nasa/ipac extragalactic database | NED | 31 | 22 | 1.000185 | 0202198,0202245,etc |
| 6 | asymptotic giant branch | AGB | 451 | 19 | 2.005274 | 0202161,0202509,etc |
| 7 | initial mass function | IMF | 139 | 19 | 1.001244 | 0202166,0202056,etc |
| 8 | cold dark matter | CDM | 202 | 18 | 1.002505 | 0202007,0202204,etc |
| 9 | interstellar medium | ISM | 212 | 17 | 2.002357 | 0202261,0202158,etc |
| 10 | gamma ray burst | GRB | 276 | 17 | 1.005998 | 0202404,0202047,etc |
| 11 | star formation rate | SFR | 146 | 13 | 1.001405 | 0202191,0202104,etc |
| 12 | planetary nebula | PN | 306 | 13 | 2.01305 | 0202243,0202170,etc |
| 13 | supernova remnant | SNR | 325 | 13 | 2.004898 | 0202047,0202041,etc |
| 14 | supernova | SN | 761 | 12 | 2.011844 | 0202198,0202070,etc |
| 15 | sloan digital sky survey | SDSS | 481 | 12 | 2.005324 | 0202198,0202165,etc |
| 16 | equivalent width | EW | 131 | 10 | 1.001852 | 0202158,0202077,etc |
| 17 | hubble space telescope | HST | 85 | 10 | 2.000708 | 0202429,0202342,etc |
| 18 | advanced ccd imaging spectrometer | ACIS | 97 | 10 | 1.003917 | 0202083,0202277,etc |
| 19 | large magellanic cloud | LMC | 171 | 9 | 2.004547 | 0202047,0202239,etc |
| 20 | cataclysmic variable | CV | 65 | 9 | 2.001652 | 0202162,0202349,etc |
| 21 | luminosity function | LF | 258 | 9 | 2.005197 | 0202204,0202427,etc |
| 22 | low mass x ray binary | LMXB | 56 | 8 | 2.000742 | 0202056,0202077,etc |
| 23 | very large array | VLA | 58 | 8 | 1.001282 | 0202003,0202149,etc |
| 24 | intracluster medium | ICM | 71 | 8 | 2.001088 | 0202199,0202101,etc |
| 25 | simple stellar population | SSP | 84 | 7 | 2.001443 | 0202166,0202104,etc |
| 26 | infrared | IR | 85 | 7 | 2.001605 | 0202198,0202171,etc |
| 27 | reflection grating spectrometer | RGS | 15 | 7 | 1.000178 | 0202077,0202375,etc |
| 28 | european photon imaging camera | EPIC | 30 | 7 | 1.000654 | 0202077,0202398,etc |
| 29 | intergalactic medium | IGM | 77 | 7 | 1.006015 | 0202104,0202293,etc |
| 30 | red giant branch | RGB | 63 | 7 | 2.002012 | 0202429,0202212,etc |
| 31 | 2 micron all sky survey | 2MASS | 42 | 7 | 1.001205 | 0202182,0202216,etc |
| 32 | field of view | FOV | 13 | 7 | 1.000315 | 0202048,0202151,etc |
| 33 | quasi periodic oscillation | QPO | 260 | 6 | 2.005059 | 0202205,0202077,etc |
| 34 | advection dominated accretion flow | ADAF | 34 | 6 | 1.000468 | 0202511,0202083,etc |
| 35 | synchrotron self compton | SSC | 34 | 6 | 1.000926 | 0202068,0202280,etc |
| 36 | signal to noise ratio | S/N | 58 | 6 | 2.001033 | 0202037,0202335,etc |
| 37 | cross correlation function | CCF | 44 | 5 | 1.001508 | 0202418,0202457,etc |
| 38 | primordial black hole | PBH | 138 | 5 | 2.006872 | 0202218,0202032,etc |
| 39 | near infrared | NIR | 51 | 5 | 1.002235 | 0202435,0202124,etc |
| 40 | magnetohydrodynamic | MHD | 77 | 5 | 2.00205 | 0202261,0202243,etc |
| 41 | color magnitude diagram | CMD | 42 | 5 | 2.001202 | 0202056,0202320,etc |
| 42 | space telescope imaging spectrograph | STIS | 57 | 5 | 2.000975 | 0202170,0202289,etc |
| 43 | infrared space observatory | ISO | 89 | 5 | 2.002237 | 0202170,0202171,etc |
| 44 | far infrared | FIR | 90 | 5 | 2.00439 | 0202449,0202433,etc |
| 45 | signal to noise | S/N | 26 | 5 | 2.000999 | 0202429,0202379,etc |
| 46 | x ray background | XRB | 75 | 5 | 1.007059 | 0202245,0202136,etc |
| 47 | broad line region | BLR | 123 | 5 | 2.003896 | 0202068,0202394,etc |
| 48 | horizontal branch | HB | 147 | 5 | 2.003192 | 0202295,0202419,etc |
| 49 | digital sky survey | DSS | 64 | 5 | 1.005884 | 0202371,0202494,etc |
| 50 | zero age main sequence | ZAMS | 14 | 5 | 1.0003 | 0202018,0202207,etc |
| 51 | good time interval | GTI | 14 | 5 | 1.001182 | 0202480,0202154,etc |
| 52 | kolmogorov smirnov | KS | 18 | 5 | 1.000372 | 0202423,0202431,etc |
| 53 | cosmic microwave background radiation | CMB | 24 | 4 | 2.000878 | 0202218,0202280,etc |
| 54 | ultraluminous infrared galaxy | ULIRG | 13 | 4 | 1.001088 | 0202435,0202084,etc |
| 55 | spectral energy distributions | SED | 45 | 4 | 1.000993 | 0202405,0202183,etc |
| 56 | young stellar object | YSO | 33 | 4 | 1.001747 | 0202243,0202287,etc |
| 57 | james clerk maxwell telescope | JCMT | 14 | 4 | 1.00021 | 0202092,0202228,etc |
| 58 | small magellanic cloud | SMC | 164 | 4 | 2.004247 | 0202239,0202203,etc |
| 59 | hopkins ultraviolet telescope | HUT | 16 | 4 | 2.000349 | 0202162,0202293,etc |
| 60 | local thermodynamic equilibrium | LTE | 10 | 4 | 1.00016 | 0202171,0202456,etc |
| 61 | medium energy grating | MEG | 29 | 4 | 2.001391 | 0202083,0202333,etc |
| 62 | very large telescope | VLT | 11 | 4 | 1.000322 | 0202293,0202080,etc |
| 63 | european southern observatory | ESO | 15 | 4 | 1.000355 | 0202203,0202214,etc |
| 64 | supermassive black hole | SMBH | 42 | 4 | 2.000848 | 0202112,0202382,etc |
| 65 | press schechter | PS | 41 | 4 | 1.001137 | 0202117,0202201,etc |
| 66 | very long baseline interferometry | VLBI | 30 | 4 | 1.001561 | 0202514,0202046,etc |
| 67 | tully fisher | TF | 84 | 4 | 1.005136 | 0202267,0202057,etc |
| 68 | power spectral density | PSD | 187 | 4 | 2.003112 | 0202145,0202258,etc |
| 69 | main sequence | MS | 36 | 4 | 1.000629 | 0202419,0202179,etc |
| 70 | isaac newton telescope | INT | 10 | 4 | 1.000297 | 0202270,0202516,etc |
| 71 | hubble deep field | HDF | 23 | 4 | 1.001699 | 0202423,0202244,etc |
| 72 | inverse compton | IC | 30 | 4 | 2.001048 | 0202279,0202116,etc |
| 73 | mid infrared | mid-IR | 35 | 3 | 1.001485 | 0202161,0202183,etc |
| 74 | globular cluster | GC | 409 | 3 | 2.012041 | 0202191,0202260,etc |
| 75 | wide field and planetary camera 2 | WFPC2 | 39 | 3 | 2.000583 | 0202047,0202268,etc |
| 76 | wolf rayet | WR | 106 | 3 | 2.005233 | 0202047,0202203,etc |
| 77 | luminous blue variable | LBV | 15 | 3 | 1.001832 | 0202047,0202506,etc |
| 78 | science analysis software | SAS | 4 | 3 | 1.000122 | 0202077,0202093,etc |
| 79 | max planck institute for astronomy | MPIA | 3 | 3 | 1.000166 | 0202408,0202251,etc |
| 80 | max planck institute for astrophysics | MPA | 3 | 3 | 1.000166 | 0202408,0202251,etc |
| 81 | full width at half maximum | FWHM | 27 | 3 | 1.000648 | 0202420,0202127,etc |
| 82 | smooth particle hydrodynamics | SPH | 116 | 3 | 2.003437 | 0202485,0202112,etc |
| 83 | low luminosity agn | LLAGN | 23 | 3 | 1.003777 | 0202511,0202044,etc |
| 84 | far ultraviolet spectroscopic explorer | FUSE | 32 | 3 | 1.002411 | 0202162,0202293,etc |
| 85 | star formation | SF | 76 | 3 | 2.001661 | 0202160,0202097,etc |
| 86 | large scale structure | LSS | 41 | 3 | 2.003677 | 0202465,0202117,etc |
| 87 | short wavelength spectrometer | SWS | 37 | 3 | 2.001889 | 0202171,0202506,etc |
| 88 | big bang nucleosynthesis | BBN | 26 | 3 | 2.000957 | 0202097,0202114,etc |
| 89 | high energy grating | HEG | 22 | 3 | 2.001374 | 0202083,0202333,etc |
| 90 | nordic optical telescope | NOT | 7 | 3 | 1.000227 | 0202281,0202456,etc |
| 91 | william herschel telescope | WHT | 11 | 3 | 2.000952 | 0202456,0202369,etc |
| 92 | proto planetary nebula | PPN | 19 | 3 | 1.001249 | 0202182,0202121,etc |
| 93 | neutron star | NS | 51 | 3 | 2.001646 | 0202295,0202181,etc |
| 94 | black hole candidate | BHC | 10 | 3 | 1.00107 | 0202295,0202154,etc |
| 95 | narrow field instruments | NFI | 7 | 3 | 1.000354 | 0202295,0202154,etc |
| 96 | optical gravitational lensing experiment | OGLE | 124 | 3 | 2.007297 | 0202203,0202309,etc |
| 97 | black hole | BH | 96 | 3 | 2.00181 | 0202112,0202155,etc |
| 98 | chandra x ray center | CXC | 4 | 3 | 1.000373 | 0202202,0202139,etc |
| 99 | wide field camera | WFI | 20 | 3 | 1.001604 | 0202494,0202268,etc |
| 100 | root mean square | RMS | 16 | 3 | 1.000258 | 0202309,0202301,etc |
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