| general relativity | GR | 856 | 52 | 2.002612 | 2001.00010,2001.00031,etc |
| gravitational wave | GW | 1321 | 41 | 2.005058 | 2001.00279,2001.00403,etc |
| cosmic microwave background | CMB | 333 | 26 | 2.003501 | 2001.00011,2001.02368,etc |
| equation of state | EoS | 356 | 21 | 2.003506 | 2001.00816,2001.00825,etc |
| black hole | BH | 868 | 18 | 1.006878 | 2001.00821,2001.01642,etc |
| signal to noise ratio | SNR | 140 | 15 | 1.002559 | 2001.00242,2001.00279,etc |
| neutron star | NS | 383 | 14 | 2.004458 | 2001.00863,2001.04979,etc |
| dark energy | DE | 294 | 13 | 2.005487 | 2001.02368,2001.02414,etc |
| binary neutron star | BNS | 211 | 12 | 2.004724 | 2001.00821,2001.01462,etc |
| friedmann lema^{i}tre robertson walker | FLRW | 50 | 11 | 1.000298 | 2001.00031,2001.00394,etc |
| anti de sitter | AdS | 194 | 11 | 2.005199 | 2001.00615,2001.01591,etc |
| dark matter | DM | 378 | 11 | 2.00454 | 2001.01729,2001.04702,etc |
| effective one body | EOB | 194 | 10 | 2.002804 | 2001.00352,2001.00821,etc |
| innermost stable circular orbit | ISCO | 33 | 8 | 2.000827 | 2001.00863,2001.02986,etc |
| friedmann lemaitre robertson walker | FLRW | 29 | 8 | 1.00048 | 2001.00935,2001.02474,etc |
| electromagnetic | EM | 106 | 8 | 2.001203 | 2001.01462,2001.06581,etc |
| markov chain monte carlo | MCMC | 20 | 8 | 1.000242 | 2001.01747,2001.08745,etc |
| quantum field theory | QFT | 39 | 8 | 1.00031 | 2001.02543,2001.04993,etc |
| primordial black hole | PBH | 334 | 8 | 2.006784 | 2001.05909,2001.09793,etc |
| einstein telescope | ET | 86 | 7 | 2.002878 | 2001.00279,2001.09553,etc |
| post newtonian | PN | 157 | 7 | 1.003579 | 2001.00352,2001.06763,etc |
| cold dark matter | CDM | 110 | 7 | 2.003969 | 2001.00863,2001.08504,etc |
| tolman oppenheimer volkoff | TOV | 17 | 7 | 1.000221 | 2001.00863,2001.06644,etc |
| binary black hole | BBH | 138 | 7 | 2.003955 | 2001.01462,2001.03571,etc |
| quasinormal mode | QNM | 112 | 7 | 2.00238 | 2001.01591,2001.06100,etc |
| infrared | IR | 85 | 7 | 1.001172 | 2001.02304,2001.02368,etc |
| friedmann lema^itre robertson walker | FLRW | 56 | 6 | 1.000859 | 2001.00154,2001.00556,etc |
| centre national de recherche scientifique | CNRS | 6 | 6 | 1.000143 | 2001.00821,2001.08411,etc |
| friedmann robertson walker | FRW | 16 | 6 | 1.000354 | 2001.00825,2001.04979,etc |
| quasi normal mode | QNM | 89 | 6 | 2.002597 | 2001.00863,2001.01301,etc |
| standard model | SM | 88 | 6 | 2.002504 | 2001.02074,2001.09217,etc |
| baryon acoustic oscillation | BAO | 42 | 6 | 1.000999 | 2001.02986,2001.05092,etc |
| baryon acoustic oscillations | BAO | 78 | 6 | 2.001879 | 2001.07945,2001.02180,etc |
| de sitter | dS | 136 | 6 | 2.007722 | 2001.01478,2001.02451,etc |
| loop quantum gravity | LQG | 23 | 5 | 1.000881 | 2001.00031,2001.02755,etc |
| event horizon telescope | EHT | 81 | 5 | 1.002862 | 2001.00041,2001.00460,etc |
| ultraviolet | UV | 25 | 5 | 1.000527 | 2001.00041,2001.02304,etc |
| power spectral density | PSD | 14 | 5 | 1.000856 | 2001.00279,2001.10914,etc |
| arnowitt deser misner | ADM | 13 | 5 | 1.000448 | 2001.00556,2001.08833,etc |
| friedmann lema^tre robertson walker | FLRW | 14 | 5 | 1.000209 | 2001.02016,2001.02414,etc |
| mathematical research impact centric support scheme | MATRICS | 5 | 5 | 1.000052 | 2001.02414,2001.09885,etc |
| science and engineering research board | SERB | 5 | 5 | 1.000052 | 2001.02414,2001.09885,etc |
| extreme mass ratio inspiral | EMRI | 36 | 5 | 1.002259 | 2001.03478,2001.04979,etc |
| large scale structure | LSS | 23 | 5 | 1.0005 | 2001.05828,2001.03879,etc |
| laser interferometer space antenna | LISA | 51 | 5 | 1.00186 | 2001.05909,2001.00721,etc |
| gravitational waves | GW | 63 | 5 | 2.003302 | 2001.08745,2001.10196,etc |
| inspiral merger ringdown | IMR | 30 | 5 | 1.00025 | 2001.09553,2001.09793,etc |
| loop quantum cosmology | LQC | 94 | 4 | 2.006087 | 2001.00031,2001.02918,etc |
| zero angular momentum observer | ZAMO | 29 | 4 | 2.000479 | 2001.00460,2001.04979,etc |
| conformal field theory | CFT | 91 | 4 | 2.002963 | 2001.00615,2001.09553,etc |
| big bang nucleosynthesis | BBN | 6 | 4 | 1.000221 | 2001.00935,2001.05828,etc |
| supermassive black hole | SMBH | 113 | 4 | 2.007299 | 2001.02986,2001.06763,etc |
| general theory of relativity | GR | 20 | 4 | 1.00087 | 2001.06644,2001.09272,etc |
| istituto nazionale della fisica nucleare | INFN | 4 | 4 | 1.000137 | 2001.08411,2001.10914,etc |
| numerical relativity | NR | 176 | 4 | 2.002992 | 2001.09082,2001.10914,etc |
| effective field theory | EFT | 46 | 4 | 2.001366 | 2001.10042,2001.00043,etc |
| barcelona supercomputing center | BSC | 8 | 4 | 1.000045 | 2001.10897,2001.10914,etc |
| red española de supercomputación | RES | 8 | 4 | 1.000045 | 2001.10897,2001.10914,etc |
| large synoptic survey telescope | LSST | 8 | 4 | 1.000726 | 2001.02180,2001.07619,etc |
| fast radio burst | FRB | 27 | 4 | 2.002315 | 2001.04210,2001.06037,etc |
| gamma ray burst | GRB | 25 | 4 | 1.000572 | 2001.04408,2001.07619,etc |
| advanced ligo | aLIGO | 8 | 4 | 1.000866 | 2001.05392,2001.07891,etc |
| cosmic explorer | CE | 85 | 4 | 2.005496 | 2001.05393,2001.07619,etc |
| null energy condition | NEC | 62 | 3 | 1.002257 | 2001.00010,2001.00816,etc |
| general relativistic magnetohydrodynamic | GRMHD | 19 | 3 | 1.000351 | 2001.00041,2001.09153,etc |
| science and technology facilities council | STFC | 4 | 3 | 1.000011 | 2001.00242,2001.06490,etc |
| wheeler dewitt | WDW | 25 | 3 | 1.001051 | 2001.00556,2001.06453,etc |
| two dimensional | 2D | 15 | 3 | 1.001051 | 2001.00615,2001.04979,etc |
| three dimensional | 3D | 10 | 3 | 1.000321 | 2001.00615,2001.04979,etc |
| natural sciences and engineering research council of canada | NSERC | 3 | 3 | 1.000065 | 2001.00821,2001.01301,etc |
| post keplerian | PK | 21 | 3 | 1.002802 | 2001.00863,2001.04122,etc |
| energy momentum tensor | EMT | 23 | 3 | 2.001335 | 2001.01460,2001.02238,etc |
| neutron star black hole | NS-BH | 16 | 3 | 2.000451 | 2001.01462,2001.07891,etc |
| gauss bonnet | GB | 158 | 3 | 2.005078 | 2001.01642,2001.02074,etc |
| supernovae type ia | SNeIa | 5 | 3 | 1.000088 | 2001.02986,2001.02180,etc |
| dirac born infeld | DBI | 80 | 3 | 2.003717 | 2001.03014,2001.07920,etc |
| breitenlohner freedman | BF | 5 | 3 | 1.00024 | 2001.08358,2001.01478,etc |
| natural science foundation of china | NSFC | 3 | 3 | 1.000191 | 2001.08391,2001.09287,etc |
| equations of state | EoS | 17 | 3 | 2.000505 | 2001.08504,2001.09153,etc |
| quantum chromodynamics | QCD | 10 | 3 | 1.000716 | 2001.09553,2001.03947,etc |
| square kilometre array | SKA | 46 | 3 | 2.002898 | 2001.09553,2001.05393,etc |
| supernova | SN | 53 | 3 | 2.001425 | 2001.01743,2001.07619,etc |
| yang mills | YM | 33 | 3 | 1.002877 | 2001.02109,2001.03947,etc |
| quark gluon plasma | QGP | 9 | 3 | 1.000657 | 2001.03633,2001.03947,etc |
| apparent horizon | AH | 6 | 3 | 1.000175 | 2001.05476,2001.07220,etc |
| european research council | ERC | 4 | 3 | 1.000118 | 2001.06016,2001.09149,etc |
| white dwarf | WD | 137 | 3 | 2.007927 | 2001.08534,2001.10698,etc |