Table 1.
Cataclysmic variables detected as X-ray sources in eRO-DR1 and eRO-S45.
| Catalog | Tot | GDR3 | BJ21 | DE | R500 | DR1 | S45 | DR1, R500 | S45, R500 | ||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| # | # | # | # | # | # | (%) | # | (%) | # | (%) | # | (%) | |
| (1) | (2) | (3) | (4) | (5) | (6) | (7) | (8) | (9) | (10) | (11) | (12) | (13) | (14) |
| CBcat | 1429 | 1287 | 1163 | 492 | 143 | 290 | 59 | 382 | 78 | 112 | 78 | 133 | 93 |
| DN-nomag | 735 | 633 | 560 | 210 | 68 | 131 | 62 | 178 | 85 | 54 | 79 | 64 | 94 |
| DN-SU | 627 | 526 | 462 | 168 | 54 | 95 | 57 | 139 | 83 | 40 | 76 | 50 | 93 |
| DN-UG | 85 | 84 | 75 | 36 | 11 | 30 | 83 | 33 | 92 | 11 | 100 | 11 | 100 |
| DN-ZC | 23 | 23 | 23 | 6 | 3 | 6 | 100 | 6 | 100 | 3 | 100 | 3 | 100 |
| NL-nomag | 93 | 91 | 87 | 35 | 9 | 23 | 66 | 29 | 83 | 8 | 89 | 8 | 89 |
| NL-SW | 20 | 20 | 20 | 10 | 3 | 5 | 50 | 9 | 90 | 3 | 60 | 3 | 100 |
| NL-UX | 44 | 43 | 39 | 17 | 4 | 11 | 65 | 12 | 71 | 3 | 75 | 3 | 75 |
| NL-VY | 29 | 28 | 28 | 8 | 2 | 7 | 88 | 8 | 100 | 2 | 100 | 2 | 100 |
| Polars | 218 | 208 | 188 | 92 | 47 | 59 | 64 | 80 | 87 | 37 | 79 | 45 | 96 |
| IPs (4–5 *) | 71 | 70 | 70 | 24 | 3 | 23 | 96 | 24 | 100 | 3 | 100 | 3 | 100 |
| IPs (2–3 *) | 79 | 66 | 61 | 32 | 3 | 23 | 72 | 29 | 91 | 1 | 33 | 3 | 100 |
| AM CVn | 80 | 72 | 65 | 29 | 10 | 19 | 66 | 26 | 90 | 9 | 90 | 10 | 100 |
| Symbiotics | 315 | 306 | 292 | 144 | 1 | 15 | 10 | 20 | 13 | 1 | 100 | 1 | 100 |
| Pala CVs | 42 | 42 | – (1) | 22 | 22 | 20 | 91 | 22 | 100 | – (2) | – | – | – |
| CRTS CVs | 855 | 611 | 496 | 247 | 33 | 137 | 55 | 204 | 83 | 24 | 73 | 29 | 88 |
| SDSS CVs | 591 | 527 | 469 | 148 | 34 | 69 | 47 | 112 | 76 | 22 | 65 | 28 | 82 |
Notes. The first column identifies the catalog or the type of CV as described in the text. The following columns give the grand total number of CVs in those catalogs, the number of those with Gaia DR3 information (Column 3), the number of those with distances derived by Bailer-Jones et al. (2021) (Column 4), the number of those that happen to lie in the western Galactic hemisphere (Column 5), and the number of those within a radius of 500 pc. The subsequent columns give the number and percentage of CVs that were detected as X-ray sources in eRASS1 (DR1) and in the stack of all eRASS’ (S45), and within a radius of 500 pc. Percentages were rounded to the nearest integer. (1) Given the short distance of the Pala CVs, we use inverted parallaxes; (2) Pala CVs are within 500 pc by definition.
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