NEXXUS 2 - The database for Nearby X-ray and extreme UV emitting Stars

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ROSAT Survey Field Image Browser     SIMBAD entry

Star Information:

RA (2000.0)	DE (2000.0)	μ [ "/yr ]	θ [ ° ]	Radial Velocity	Spectral Type	B	V	Rc	Ic	Distance [ pc ]
00 25 44.22	-77 15 15.28	2.244	81.7	22.7	G2IV	3.42	2.8	2.45	2.12	7.47

XMM-Newton Pointed Observations:

Detection Number	Sequence Id	Observation Time	Likelihood	log Lx	ESAC Links
2XMM J002546.8-771514	0006010401 1	2002-03-15T23:26 to 2002-03-16T08:37	999.9999	26.85	Postcard Server Observing Log

Detector	Filter	Count Rate	Exposure Time	Likelihood	OAX	HR1	HR2	HR3	HR4	log Lx
PN	Thick	0.05501 ± 0.00148	32932	999.9999	1.167	0.1 ± 0.027	-0.892 ± 0.018	-0.637 ± 0.143	-0.09 ± 0.412	26.86
M1	Thick	0.01154 ± 0.00063	35158	999.9999	0.266	0.238 ± 0.054	-0.802 ± 0.044	-0.695 ± 0.205	-0.022 ± 0.586	26.81
M2	Thick	0.01248 ± 0.00065	35188	999.9999	1.285	0.164 ± 0.053	-0.826 ± 0.042	-0.779 ± 0.185	0.277 ± 0.539	26.85

ROSAT All-Sky Survey (RASS):

Detection Number	Count Rate	Background	Exposure Time	Likelihood	HR1	HR2	log Lx
1RXS J002543.0-771532	0.06999 ± 0.0232	0.00133	195	15	-1 ± 0.25	0 ± 0	27.45

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 J002538.6-771520	200071 a01.008	0.03804 ± 0.0041	0.00119	114	1	2668	1992-11-17 to 1992-11-29	-0.93 ± 0.04	-0.34 ± 0.96	rgb rgbd	27.18
2RXP J002540.2-771515	200071 n00.006	0.1033 ± 0.00799	0.00132	263	0	1743	1991-04-21 to 1991-05-11	-0.67 ± 0.06	-0.36 ± 0.17	rgb rgbd	27.62

ROSAT Position Sensitive Proportional Counter with filter (PSPCF):

Detection Number	Sequence Id	Count Rate	Background	Likeli	OAX	Exposure Time	Observation Date	HR1	HR2	Images	log Lx
2RXF J002544.1-771526	200071 a01.003	0.01023 ± 0.00286	0.00018	21	0	1429	1992-11-17 to 1992-11-19	-0.9 ± 0.32	0 ± 0	rgb rgbd	27.34
2RXF J002542.5-771517	200071 n00.003	0.01085 ± 0.00268	0.00028	26	0	1667	1991-04-21 to 1991-05-08	-0.21 ± 0.23	-0.44 ± 0.6	rgb rgbd	27.31

ROSAT High Resolution Imager (HRI):

Detection Number	Sequence Id	Count Rate	SNR	OAX	Exposure Time	Observation Date	Images	log Lx
1RXH J002541.9-771517	202059 a01.001	0.04799 ± 0.00241	17.2	1	8490	1996-09-16 to 1996-09-17	rgb rgbd	27.89
1RXH J002541.2-771517	202059 n00.002	0.04893 ± 0.00254	18	1	7697	1995-11-19 to 1995-11-30	rgb rgbd	27.89
1RXH J002544.3-771514	202304 n00.003	0.04254 ± 0.00203	18.6	1	10682	1997-05-11 to 1997-05-27	rgb rgbd	27.83
1RXH J002544.6-771512	202559 n00.001	0.03714 ± 0.00163	21	1	14526	1998-03-29 to 1998-04-15	rgb rgbd	27.77

Last modified on Tuesday, 28 October 2008.   C. Liefke | Impressum