| space telescope imaging spectrograph | STIS | 81 | 8 | 2.002397 | 0304196,0304531,etc |
| warm neutral medium | WNM | 174 | 6 | 2.001847 | 0304539,0304266,etc |
| low surface brightness | LSB | 54 | 6 | 1.004696 | 0304246,0304287,etc |
| two dimensional | 2D | 20 | 5 | 1.000617 | 0304539,0304274,etc |
| cold neutral medium | CNM | 236 | 5 | 2.002516 | 0304539,0304266,etc |
| astrophysical research consortium | ARC | 6 | 5 | 1.000061 | 0304056,0304377,etc |
| max planck institute for astronomy | MPIA | 5 | 5 | 1.000069 | 0304056,0304377,etc |
| signal to noise | S/N | 32 | 5 | 2.00084 | 0304230,0304170,etc |
| rosat all sky survey | RASS | 18 | 5 | 1.00161 | 0304382,0304373,etc |
| european photon imaging camera | EPIC | 42 | 5 | 2.001695 | 0304027,0304088,etc |
| reflection grating spectrometer | RGS | 80 | 5 | 2.003412 | 0304088,0304032,etc |
| super massive black hole | SMBH | 16 | 4 | 1.001469 | 0304095,0304533,etc |
| wide field planetary camera 2 | WFPC2 | 23 | 4 | 2.000547 | 0304538,0304537,etc |
| period luminosity | P-L | 47 | 4 | 2.00106 | 0304359,0304278,etc |
| synchrotron self compton | SSC | 11 | 4 | 1.000496 | 0304241,0304363,etc |
| inverse compton | IC | 22 | 4 | 2.000177 | 0304241,0304097,etc |
| kolmogorov smirnov | K-S | 21 | 4 | 1.00038 | 0304537,0304405,etc |
| gigahertz peaked spectrum | GPS | 87 | 4 | 2.003436 | 0304291,0304532,etc |
| compact steep spectrum | CSS | 111 | 4 | 2.004762 | 0304291,0304532,etc |
| difference image analysis | DIA | 25 | 4 | 2.000817 | 0304458,0304252,etc |
| hertzsprung russell | H-R | 52 | 4 | 1.001156 | 0304409,0304414,etc |
| full width half maximum | FWHM | 4 | 3 | 1.000039 | 0304423,0304470,etc |
| all sky monitor | ASM | 33 | 3 | 1.001706 | 0304073,0304219,etc |
| low luminosity agn | LLAGN | 9 | 3 | 1.000125 | 0304538,0304533,etc |
| flux limited diffusion | FLD | 7 | 3 | 1.000252 | 0304085,0304238,etc |
| early data release | EDR | 20 | 3 | 2.001303 | 0304056,0304455,etc |
| high surface brightness | HSB | 11 | 3 | 1.001396 | 0304246,0304021,etc |
| full width at zero intensity | FWZI | 14 | 3 | 2.001368 | 0304265,0304541,etc |
| metallicity distribution function | MDF | 41 | 3 | 1.002776 | 0304194,0304320,etc |
| particle mesh | PM | 97 | 3 | 1.0059 | 0304467,0304534,etc |
| wolf rayet | WR | 112 | 3 | 2.002886 | 0304069,0304334,etc |
| sunyaev zel'dovich | SZ | 63 | 3 | 1.00379 | 0304534,0304427,etc |
| intraday variability | IDV | 18 | 3 | 1.001563 | 0304059,0304364,etc |
| medium energy grating | MEG | 45 | 3 | 1.001005 | 0304403,0304114,etc |
| dwarf irregular | dIrr | 7 | 3 | 1.000187 | 0304152,0304425,etc |