| Keyword | CPC | PCC | Volume | Score | Length of keyword |
|---|---|---|---|---|---|
| black hole binaries and microquasars | 1.32 | 1 | 867 | 25 | 36 |
| black | 1.73 | 0.8 | 8565 | 96 | 5 |
| hole | 0.57 | 0.3 | 2497 | 92 | 4 |
| binaries | 0.04 | 1 | 5490 | 95 | 8 |
| and | 1.26 | 0.8 | 8142 | 17 | 3 |
| microquasars | 1.61 | 1 | 7374 | 95 | 12 |
| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| black hole binaries and microquasars | 0.95 | 0.5 | 8201 | 4 |
| quasars and black holes | 0.06 | 0.1 | 662 | 87 |
| biggest black hole discovered in a quasar | 0.91 | 0.6 | 5815 | 6 |
| quasar and black hole difference | 1.38 | 0.9 | 2216 | 12 |
| how are black holes detected by quasars | 1.59 | 0.2 | 3885 | 25 |
| quasars pulsars and black holes | 0.42 | 0.9 | 3719 | 21 |
| black holes in binary systems | 1.28 | 0.8 | 1708 | 59 |
| binary black hole system | 0.38 | 0.5 | 8066 | 20 |
| are quasars supermassive black holes | 1.33 | 0.6 | 4598 | 58 |
| two million black holes | 0.74 | 0.9 | 8802 | 92 |
| binary supermassive black holes | 0.3 | 0.8 | 1422 | 86 |
| mini black hole created in lab | 0.62 | 0.2 | 236 | 37 |
| stellar mass black holes | 0.96 | 0.4 | 1122 | 47 |
| messier 60 black hole | 0.67 | 0.3 | 4479 | 31 |
| micro black holes on earth | 0.33 | 0.6 | 8882 | 90 |
| the mystery of black holes and answers | 0.62 | 0.7 | 117 | 37 |
| some of the smallest black holes | 0.51 | 0.3 | 9851 | 64 |
| research questions about black holes | 1.11 | 1 | 6911 | 63 |
| research papers on black holes | 1.12 | 0.8 | 6202 | 15 |
| the mystery of black holes | 2 | 0.8 | 7676 | 76 |
