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)	Spectral Type	U	B	V	Rc	Ic	J	Ks	H	Distance [ pc ]
01 39 01.20	-17 57 02.66	M5.5V:e	14.96	14.42	12.57	9.78	8.06	6.24	5.67	5.33	2.68

ROSAT All-Sky Survey (RASS):

Detection Number	Count Rate	Background	Exposure Time	Likelihood	HR1	HR2	log Lx
1RXS J013859.7-175715	0.6803 ± 0.05682	0.00119	484	318	-0.32 ± 0.08	-0.08 ± 0.14	27.55

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 J013901.6-175645	200208 n00.006	0.3557 ± 0	0.00152	3253	42	16136	1991-12-30 to 1992-01-15	-0.27 ± 0.01	0 ± 0.01	rgb rgbd	27.26

ROSAT High Resolution Imager (HRI):

Detection Number	Sequence Id	Count Rate	SNR	OAX	Exposure Time	Observation Date	Images	log Lx
1RXH J013900.4-175704	201698 a01.002	0.1858 ± 0.00428	38	3	10021	1994-06-21 to 1994-06-25	rgb rgbd	27.58
1RXH J013900.0-175701	201698 n00.012	1.41 ± 0.0101	121.7	2	13884	1994-01-05 to 1994-01-08	rgb rgbd	28.46
1RXH J013900.1-175702	201864 n00.003	0.1483 ± 0.00345	37.6	2	12435	1995-01-05 to 1995-01-06	rgb rgbd	27.49
1RXH J013900.1-175702	201865 n00.003	0.1847 ± 0.00389	41.7	2	12165	1995-01-06 to 1995-01-07	rgb rgbd	27.58

ROSAT Wide Field Camera (WFC) Pointed Observations:

Source	RA (2000.0)	DE (2000.0)	Sequence ID	Count Rate	OAX	Significance	Filter	Observation Date
1	01 39 01.25	- 17 57 05.9	200208 w00_s2b	0.02111 ± 0.0037	41.4	7.29	S2	1991-12-31T00:00
2	01 39 00.92	- 17 57 12.0	201698 w01_s2b	0.02836 ± 0.00845	2.6	5.49	S2	1994-01-05T18:00
1	01 39 02.05	- 17 57 15.1	201865 w00_s2b	0.02152 ± 0.00572	0.7	5.69	S2	1995-01-06T18:00

EUVE All-Sky Survey:

Detection Number	RA (2000.0)	DE (2000.0)	58-174 Å Count Rate	156-234 Å Count Rate	368-590 Å Count Rate	519-742 Å Count Rate
EUVE J0138-179	01 38 60	-17 57.7	0.093 ± 0.013	0.028 ± 0.014

Joint EUVE-ROSAT Detections:

Detection Number	RA (2000.0)	DE (2000.0)	58-174 Å Count Rate
EUVE J0138-179	01 38 59	-17 57 09	0.09

Einstein Imaging Proportional Counter (IPC):

Detection Number	RA (2000.0)	DE (2000.0)	Sequence ID	Count Rate	Exposure Time	SNR	OAX	Observation Date	Images	Data
2E 0136.5-1812	01 38 55.8	-17 57 05	905 455	0.124 ± 0.006	5125.6	21.3	1.5	1978-12-23 to 1980-01-21	gif FITS	Events
2E 0136.5-1812	01 38 56.6	-17 57 15	906 455	0.132 ± 0.01	1723.9	12.9	1.8	1979-06-27 to 1979-06-27	gif FITS	Events
2E 0136.5-1812	01 38 57.1	-17 57 08	6952 455	0.238 ± 0.008	5661.9	31.4	0.8	1980-07-21 to 1980-07-21	gif FITS	Events
2E 0136.5-1812	01 38 57.3	-17 57 14	6953 455	0.237 ± 0.007	6140.8	32.5	0.6	1981-01-25 to 1981-01-25	gif FITS	Events

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