| active galactic nucleus | AGN | 1643 | 56 | 1.005124 | 0506712,0506607,etc |
| spectral energy distribution | SED | 834 | 55 | 1.002352 | 0506252,0506759,etc |
| point spread function | PSF | 315 | 43 | 1.001608 | 0506168,0506095,etc |
| cosmic microwave background | CMB | 456 | 32 | 1.002576 | 0506712,0506707,etc |
| sloan digital sky survey | SDSS | 570 | 31 | 2.00439 | 0506245,0506370,etc |
| interstellar medium | ISM | 309 | 31 | 2.001305 | 0506224,0506113,etc |
| cold dark matter | CDM | 315 | 25 | 2.003004 | 0506529,0506635,etc |
| nasa/ipac extragalactic database | NED | 33 | 24 | 1.000167 | 0506470,0506660,etc |
| star formation rate | SFR | 187 | 23 | 2.000879 | 0506766,0506101,etc |
| color magnitude diagram | CMD | 256 | 22 | 2.002148 | 0506622,0506161,etc |
| initial mass function | IMF | 183 | 22 | 1.00177 | 0506622,0506039,etc |
| supernova | SN | 958 | 22 | 2.007598 | 0506597,0506123,etc |
| main sequence | MS | 371 | 19 | 1.00228 | 0506085,0506183,etc |
| asymptotic giant branch | AGB | 222 | 18 | 1.002026 | 0506161,0506763,etc |
| gamma ray burst | GRB | 480 | 17 | 1.00797 | 0506101,0506203,etc |
| equivalent width | EW | 100 | 17 | 1.000509 | 0506651,0506299,etc |
| hubble space telescope | HST | 110 | 16 | 2.001315 | 0506585,0506358,etc |
| very large telescope | VLT | 83 | 16 | 1.001026 | 0506356,0506705,etc |
| equation of state | EOS | 300 | 14 | 1.005312 | 0506161,0506619,etc |
| full width at half maximum | FWHM | 39 | 13 | 1.000768 | 0506245,0506474,etc |
| red giant branch | RGB | 294 | 13 | 2.002511 | 0506622,0506161,etc |
| intergalactic medium | IGM | 141 | 13 | 2.001377 | 0506712,0506195,etc |
| luminosity function | LF | 539 | 13 | 1.00759 | 0506161,0506201,etc |
| very large array | VLA | 226 | 13 | 2.005018 | 0506268,0506113,etc |
| signal to noise ratio | S/N | 125 | 12 | 2.000953 | 0506622,0506539,etc |
| neutron star | NS | 196 | 12 | 2.002824 | 0506168,0506123,etc |
| cataclysmic variable | CV | 256 | 12 | 2.010014 | 0506075,0506031,etc |
| supernova remnant | SNR | 340 | 11 | 2.003535 | 0506168,0506023,etc |
| white dwarf | WD | 261 | 11 | 2.003866 | 0506246,0506098,etc |
| infrared | IR | 789 | 11 | 2.007408 | 0506246,0506736,etc |
| two micron all sky survey | 2MASS | 81 | 11 | 1.000756 | 0506724,0506513,etc |
| max planck institute for astronomy | MPIA | 10 | 10 | 1.000055 | 0506539,0506201,etc |
| max planck institute for astrophysics | MPA | 10 | 10 | 1.000055 | 0506539,0506201,etc |
| advanced camera for surveys | ACS | 138 | 10 | 2.002281 | 0506607,0506470,etc |
| globular cluster | GC | 687 | 10 | 2.013161 | 0506529,0506424,etc |
| adaptive optics | AO | 127 | 10 | 2.003964 | 0506356,0506575,etc |
| near infrared | NIR | 183 | 10 | 2.002266 | 0506356,0506275,etc |
| young stellar object | YSO | 152 | 10 | 2.001277 | 0506526,0506726,etc |
| lyman break galaxy | LBG | 114 | 10 | 2.004197 | 0506561,0506685,etc |
| pre main sequence | PMS | 138 | 9 | 1.002 | 0506526,0506271,etc |
| horizontal branch | HB | 145 | 9 | 1.001468 | 0506161,0506727,etc |
| colour magnitude diagram | CMD | 117 | 9 | 2.001202 | 0506481,0506522,etc |
| planetary nebula | PN | 272 | 9 | 2.007007 | 0506090,0506659,etc |
| low mass x ray binary | LMXB | 312 | 8 | 2.007511 | 0506018,0506666,etc |
| milky way | MW | 58 | 8 | 1.001594 | 0506622,0506101,etc |
| large magellanic cloud | LMC | 124 | 8 | 2.005595 | 0506622,0506224,etc |
| black hole | BH | 377 | 8 | 2.00744 | 0506712,0506085,etc |
| dark matter | DM | 274 | 8 | 2.003061 | 0506712,0506499,etc |
| field of view | FOV | 30 | 8 | 1.000998 | 0506095,0506358,etc |
| small magellanic cloud | SMC | 74 | 8 | 2.004651 | 0506224,0506101,etc |
| kolmogorov smirnov | K-S | 20 | 8 | 1.00012 | 0506251,0506547,etc |
| orion nebula cluster | ONC | 177 | 8 | 2.001288 | 0506526,0506134,etc |
| space telescope imaging spectrograph | STIS | 84 | 8 | 1.000578 | 0506101,0506149,etc |
| astrophysical research consortium | ARC | 16 | 8 | 1.000419 | 0506201,0506022,etc |
| intermediate mass black hole | IMBH | 127 | 7 | 1.005136 | 0506018,0506085,etc |
| signal to noise | S/N | 63 | 7 | 1.00159 | 0506168,0506705,etc |
| low surface brightness | LSB | 124 | 7 | 1.002307 | 0506370,0506039,etc |
| zero age main sequence | ZAMS | 38 | 7 | 2.000607 | 0506597,0506107,etc |
| rosat all sky survey | RASS | 31 | 7 | 2.002031 | 0506380,0506356,etc |
| far infrared | FIR | 161 | 7 | 1.002849 | 0506759,0506268,etc |
| inverse compton | IC | 102 | 7 | 2.003609 | 0506682,0506465,etc |
| proportional counter array | PCA | 65 | 7 | 2.001626 | 0506515,0506170,etc |
| cosmic ray | CR | 137 | 7 | 1.004554 | 0506698,0506137,etc |
| magnetohydrodynamic | MHD | 88 | 7 | 1.001616 | 0506137,0506321,etc |
| all sky monitor | ASM | 49 | 7 | 2.002368 | 0506438,0506319,etc |
| local group | LG | 29 | 6 | 1.000683 | 0506622,0506547,etc |
| smoothed particle hydrodynamics | SPH | 30 | 6 | 2.001447 | 0506712,0506516,etc |
| supermassive black hole | SMBH | 154 | 6 | 1.005054 | 0506607,0506038,etc |
| wide field imager | WFI | 13 | 6 | 1.000159 | 0506607,0506044,etc |
| advanced ccd imaging spectrometer | ACIS | 88 | 6 | 2.00181 | 0506168,0506526,etc |
| infrared space observatory | ISO | 75 | 6 | 1.00197 | 0506252,0506421,etc |
| wide field camera | WFC | 17 | 6 | 1.000257 | 0506568,0506031,etc |
| quasi periodic oscillation | QPO | 297 | 6 | 1.00841 | 0506456,0506702,etc |
| cosmic microwave background radiation | CMBR | 60 | 6 | 1.001158 | 0506009,0506748,etc |
| ultraviolet | UV | 115 | 6 | 2.00272 | 0506246,0506665,etc |
| wolf rayet | WR | 294 | 6 | 2.005419 | 0506037,0506088,etc |
| photodissociation region | PDR | 102 | 6 | 1.003088 | 0506037,0506003,etc |
| european southern observatory | ESO | 64 | 6 | 2.000881 | 0506561,0506555,etc |
| poynting robertson | PR | 42 | 6 | 2.000724 | 0506743,0506703,etc |
| large scale structure | LSS | 85 | 6 | 2.001827 | 0506061,0506162,etc |
| nuclear statistical equilibrium | NSE | 29 | 6 | 1.000483 | 0506121,0506100,etc |
| new technology telescope | NTT | 15 | 6 | 1.000256 | 0506384,0506545,etc |
| adaptive mesh refinement | AMR | 19 | 5 | 1.000214 | 0506712,0506342,etc |
| charge transfer inefficiency | CTI | 16 | 5 | 1.000326 | 0506607,0506616,etc |
| general relativity | GR | 40 | 5 | 1.003548 | 0506370,0506104,etc |
| anomalous x ray pulsar | AXP | 49 | 5 | 1.002801 | 0506095,0506288,etc |
| probability distribution function | PDF | 119 | 5 | 1.002 | 0506549,0506766,etc |
| science analysis system | SAS | 13 | 5 | 1.000517 | 0506682,0506673,etc |
| giant molecular cloud | GMC | 34 | 5 | 2.002229 | 0506402,0506766,etc |
| national radio astronomy observatory | NRAO | 12 | 5 | 1.000239 | 0506268,0506046,etc |
| mid infrared | MIR | 87 | 5 | 1.004178 | 0506421,0506462,etc |
| intracluster medium | ICM | 67 | 5 | 1.001386 | 0506274,0506065,etc |
| broad line region | BLR | 61 | 5 | 1.003877 | 0506665,0506071,etc |
| position angle | PA | 36 | 5 | 1.001223 | 0506047,0506271,etc |
| magnetorotational instability | MRI | 114 | 5 | 1.002672 | 0506063,0506216,etc |
| ultra high energy cosmic ray | UHECR | 98 | 4 | 1.004081 | 0506318,0506203,etc |
| dwarf spheroidal | dSph | 41 | 4 | 2.002234 | 0506622,0506197,etc |
| sagittarius | Sgr | 134 | 4 | 2.003483 | 0506168,0506541,etc |
| collisional ionization equilibrium | CIE | 19 | 4 | 1.000327 | 0506168,0506346,etc |
| local standard of rest | LSR | 28 | 4 | 1.000971 | 0506633,0506502,etc |
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