NEXXUS - The database for Nearby X-ray and extreme UV emitting Stars
Star Page - Gl 278B BS 2890
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ROSAT Survey Field Image Browser Simbad Objects
Star Information:
| RA (2000.0) | DE (2000.0) | Mu | Theta | Radial Velocity | Spectral Type | V | B-V | R-I | MV | Pi | Distance |
| 07 34 36 | + 31 53.3 | 0.254 | 234.3 | -1.2 | A m | 2.91 | 1.92 | 63.27 ± 1.23 | 15.81 |
XMM-Newton Observations:
| Detection Number | Sequence Id | Observation Time | Exposure Time | Likelihood | log Lx |
| 1XMMJ073435.9+315318 | 123710101 2 | 2000-04-25T03:55:40 to 2000-04-25T20:52:16 | 60990 | 999.9999 | 29.25 |
| Detector | Filter | Count Rate | Likelihood | OAX | Vignetting | HR1 | HR2 | HR3 | log Lx |
| M1 | Thick | 0.46247 ± 0.00291 | 999.9999 | 1.3294 | 0.9847 | 0.66696 ± 0.00476 | -0.90619 ± 0.00293 | -0.85265 ± 0.01759 | 29.26 |
| M2 | Thick | 0.44995 ± 0.002786 | 999.9999 | 1.2287 | 0.98807 | 0.65576 ± 0.00483 | -0.91766 ± 0.00277 | -0.85988 ± 0.01926 | 29.24 |
| Detection Number | Sequence Id | Observation Time | Exposure Time | Likelihood | log Lx |
| 1XMMJ073435.7+315319 | 123710201 2 | 2000-04-24T19:22:12 to 2000-04-25T00:45:25 | 19388 | 999.9999 | 29.26 |
| Detector | Filter | Count Rate | Likelihood | OAX | Vignetting | HR1 | HR2 | HR3 | log Lx |
| M1 | Thick | 0.47907 ± 0.005003 | 999.9999 | 1.3427 | 0.98469 | 0.66076 ± 0.00803 | -0.90817 ± 0.00481 | -0.86278 ± 0.02456 | 29.27 |
| M2 | Thick | 0.4616 ± 0.004938 | 999.9999 | 1.2485 | 0.98807 | 0.66939 ± 0.00813 | -0.91429 ± 0.00475 | -0.82657 ± 0.02876 | 29.25 |
ROSAT All-Sky Survey (RASS):
| Detection Number | Count Rate | Background | Exposure Time | Likeli | HR1 | HR2 | log Lx |
| 1RXS J073437.2+315223 | 3.697 ± 0.09115 | 0.000981 | 440 | 6400 | -0.15 ± 0.02 | -0.01 ± 0.03 | 29.82 |
ROSAT Position Sensitive Proportional Counter (PSPC):
| Detection Number | Sequence Id | Count Rate | Background | Likeli | OAX | Exposure Time | Observation Time | HR1 | HR2 | Images | log Lx |
| 2RXP J073435.4+315220 | 200328 n00.116 | 0.1594 ± 0.0044 | 0.002389 | 6152 | 1 | 90436 | 910329 to 910403 | -0.81 ± 0.01 | -0.14 ± 0.07 | rgb rgbd | 28.46 |
| 2RXP J073436.4+315226 | 800348 n00.002 | 3.483 ± 0 | 0.001089 | 9999 | 33 | 2381 | 930410 to 930410 | -0.13 ± 0.01 | 0.17 ± 0.01 | rgb rgbd | 29.8 |
ROSAT High Resolution Imager (HRI):
| Detection Number | Sequence Id | Count Rate | SNR | OAX | Exposure Time | Observation Date | Images | log Lx |
| 1RXH J073436.3+315315 | 200655 n00.003 | 0.2021 ± 0.00651 | 27.6 | 1 | 4762 | 920418 to 920419 | rgb rgbd | 29.16 |
| 1RXH J073436.1+315319 | 201946 n00.032 | 0.3086 ± 0.00202 | 121.8 | 1 | 74751 | 941005 to 941020 | rgb rgbd | 29.35 |
ROSAT Wide Field Camera (WFC) All-Sky Survey:
| Detection Number | RA (2000.0) | DE (2000.0) | S1 Count Rate | S2 Count Rate | Significance S1 | Significance S2 | Significance |
| 2RE J0734+315 | 07 34 37.31 | +31 52 49.4 | 0.065 ± 0.007 | 0.09 ± 0.01 | 18.3 | 13.5 | 22.8 |
ROSAT Wide Field Camera (WFC) Pointed Observations:
| Source | RA (2000.0) | DE (2000.0) | Sequence ID | Count Rate | OAX | Significance | Filter | mjd |
| 5 | 07 34 36.97 | + 31 52 36.4 | 201946 w00_s1a | 0.0722 ± 0.00309 | 0.7 | 41 | S1 | 49629.93 |
| 1 | 07 34 35.77 | + 31 52 13.0 | 701303 w00_s1a | 0.07244 ± 0.00653 | 93.2 | 16.48 | S1 | 49447.14 |
| 3 | 07 34 37.51 | + 31 51 47.7 | 800348 w00_s1a | 0.20671 ± 0.02073 | 33.1 | 20.39 | S1 | 49087.71 |
| 3 | 07 34 36.13 | + 31 52 15.2 | 800668 w00_s1a | 0.05795 ± 0.00558 | 32.9 | 17.31 | S1 | 49631.63 |
Last modified on Thursday, 23 October 2003. C. Liefke | Impressum