Positions of galactic x-ray sources: 0° < lii < 20°

ABSTRACT PRECISE (20–25″) positions of six X-ray sources located in the galactic bulge, GX1+4, GX9+9, GX3+1, GX+1, G%13+1 and GX17+2 are reported here. The data were taken as part of the

survey of the galactic plane performed with the SAS-3 rotating modulation collimators1–4. Previously proposed optical counterparts for three of these sources (GX1+4, GX9+9, and GX17+2) lie

within our error circles. The positions, error radii, and intensities (2–11 keV) determined for the sources are given in Table 1. We compare our results with those determined with previous

sounding rocket and satellite experiments in Fig. 1. Proposed optical and radio candidates are also included. Finding charts for the six sources are given in Fig. 2. Access through your

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BEING VIEWED BY OTHERS ULTRA-HIGH-ENERGY GAMMA-RAY BUBBLE AROUND MICROQUASAR V4641 SGR Article 16 October 2024 CYGNUS X-3 REVEALED AS A GALACTIC ULTRALUMINOUS X-RAY SOURCE BY IXPE Article 21

June 2024 EVENT HORIZON TELESCOPE OBSERVATIONS OF THE JET LAUNCHING AND COLLIMATION IN CENTAURUS A Article Open access 19 July 2021 REFERENCES * Bradt, H. V. _et al._ _Nature_ 269, 21–25

(1977). Article  ADS  CAS  Google Scholar  * Doxsey, R. E., Apparao, K. M. V., Bradt, H. V., Dower, R. G. & Jernigan, J. G. _Nature_ 269, 112–116 (1977). Article  ADS  Google Scholar  *

Bradt, H. V., Apparao, K. M. V., Dower, R., Doxsey, R. E., Jernigan, J. G. & Markert, T. H. _Nature_ 269, 496–497 (1977). Article  ADS  Google Scholar  * Jernigan, J. G., Apparao, K. M.

V., Bradt, H. V., Doxsey, R. E. & McClintock, J. E. _Nature_ 270, 321–323 (1977). Article  ADS  Google Scholar  * Glass, I. S. & Feast, M. W. _Nature phys. Sci._ 245, 39–40 (1973).

Article  ADS  CAS  Google Scholar  * Davidsen, A., Malina, R., Bowyer, S. _Astrophys. J._ 203, 448–454 (1976). Article  ADS  CAS  Google Scholar  * Davidsen, A., Malina, R. & Bowyer, S.

_Astrophys. J._ 211, 866–871 (1977). Article  ADS  CAS  Google Scholar  * Willmore, A. P. _et al._ _Mon. Not. R. astr. Soc._ 169, 7–23 (1974). Article  ADS  Google Scholar  * Giacconi, R.

_et al._ _Astrophys. J. Suppl._ 27, 37–64 (1974). Article  ADS  Google Scholar  * Charles, P. A., Thorstensen, J. R. & Bowyer, S. _IAU Circ._ No. 3096 (1977). * Janes, A. F., Pounds, K.

A., Ricketts, M. J., Willmore, A. P. & Morrison, L. V. _Nature_ 244, 349 (1973). Article  ADS  Google Scholar  * Kunkel, W. _et al._ _Astrophys. J. Lett._ 161, L169–L172 (1970). Article

  ADS  Google Scholar  * Davison, P. J. N. & Morrison, L. V. _Mon. Not. R. astr. Soc._ 178, 53p–56p (1977). Article  ADS  Google Scholar  * Wilson, A. M., Carpenter, G. F., Eyles, C. J.,

Skinner, G. K. & Willmore, A. P. _Astrophys. J. Lett._ 215, L111–L115 (1977). Article  ADS  Google Scholar  * Schnopper, H. W. _et al._ _Astrophys. J. Lett._ 161, L161–L167 (1970).

Article  ADS  Google Scholar  * Murdin, P. _et al._ _Mon. Not. R. astr. Soc._ 169, 25–34 (1974). Article  ADS  Google Scholar  * Zaumen, W., Murthy, G. T., Rappaport, S., Hjellming, R. M.

& Wade, C. M. _Nature_ 235, 378–379 (1972). Article  ADS  Google Scholar  * White, N. E., Mason, K. O., Sanford, P. W., Johnson, H. M. & Catura, R. C. _Astrophys. J._ (submitted). *

Hjellming, R. M. & Wade, C. M. _Astrophys. J. Lett._ 168, L21–L24 (1971). Article  ADS  Google Scholar  * Tananbaum, H., Gursky, H., Kellogg, E. & Giacconi, R. _Astrophys. J. Lett._

168, L25–L28 (1971). Article  ADS  Google Scholar  * Tarenghi, M. & Reina, C. _Nature phys. Sci._ 240, 53–54 (1972). Article  ADS  Google Scholar  * Hoag, A. & Weisberg, J. M.

_Astrophys. J._ 209, 908–911 (1976). Article  ADS  Google Scholar  * Margon, B. _Astrophys. J._ (in the press). * White, N. E., Mason, K. O., Huckle, H. E., Charles, P. A. & Sanford, P.

W. _Astrophys. J. Lett._ 209, L119–L124 (1976). Article  ADS  Google Scholar  * Lewin, W. H. G., Ricker, G. R. & McClintock, J. E. _Astrophys. J. Lett._ 169, L17–L21 (1971). Article  ADS

  Google Scholar  * Hawkins, F. J., Mason, K. O. & Sanford, P. W. _Nature phys. Sci._ 241, 109–111 (1973). Article  ADS  Google Scholar  * Forman, W. _et al._ _Astrophys. J. Suppl._ (in

the press). * Bradt, H., Naranan, S., Rappaport, S. & Spada, G. _Astrophys. J._ 152, 1005–1013 (1968). Article  ADS  Google Scholar  Download references AUTHOR INFORMATION AUTHORS AND

AFFILIATIONS * Department of Physics and Center for Space Research, Massachusetts Institute of Technology, Cambridge, Massachusetts, 02139 R. E. DOXSEY, K. M. V. APPARAO, H. V. BRADT, R. G.

DOWER & J. G. JERNIGAN * Tata Institute of Fundamental Research, Bombay, India K. M. V. APPARAO Authors * R. E. DOXSEY View author publications You can also search for this author

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galactic X-ray sources: 0° < _l_II < 20°. _Nature_ 270, 586–588 (1977). https://doi.org/10.1038/270586a0 Download citation * Received: 12 September 1977 * Accepted: 24 October 1977 *

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