Table 4.
Optical counterparts of eRASSU J050810.4–660653, RX J0501.6–7034, and eRASSt J044811.1–691318.
| Source | V(a) | Q(a,b) | 2MASS | J | H | Ks | RA | Dec. | D(d) |
|---|---|---|---|---|---|---|---|---|---|
| (short) | (J2000) (c) | ||||||||
| (mag) | (mag) | (mag) | (mag) | (mag) | (h m s) | (°′″) | (″) | ||
| J0508 | 14.15 | −0.89 | 05080993−6606523 | 13.98 | 13.93 | 13.70 | 05 08 09.94 | −66 06 52.1 | 0.61 |
| J0501 | 14.36 | −0.84 | 05012419−7033346 | 13.98 | 13.17 | 13.06 | 05 01 23.84 | −70 33 33.9 | 0.95 |
| J0448 | 15.77 | −0.76 | – | – | – | – | 04 48 10.65 | −69 13 17.0 | 0.99 |
Notes.
Magnitudes and colours are taken from Zaritsky et al. (2004) or in the case of eRASSt J044811.1–691318 from Massey (2002).
Reddening-free parameter, defined as Q = U − B − 0.72(B − V). For the distribution of the Q parameter of BeXRBs in the SMC; see Haberl & Sturm (2016).
Position of the optical counterpart from Gaia EDR3 (see Gaia Collaboration 2021, 2016).
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.