HEAO 1 observations of 4U1232+07 [1] (multiple letters)

S. P. Bhavsar; Melville P Ulmer; R. G. Cruddace; K. Wood; J. Meekins; D. Yentis; W. Evans; H. Smathers; E. T. Byram; T. A. Chubb; H. Friedman

doi:10.1038/281462a0

HEAO 1 observations of 4U1232+07 [1] (multiple letters)

S. P. Bhavsar^*, Melville P Ulmer, R. G. Cruddace, K. Wood, J. Meekins, D. Yentis, W. Evans, H. Smathers, E. T. Byram, T. A. Chubb, H. Friedman

^*Corresponding author for this work

Physics and Astronomy

Research output: Contribution to journal › Letter › peer-review

Abstract

While performing an analysis of the NRL HEAO 1 observations of the Virgo cluster and 3C273, we detected X-ray emission from a region between these two objects. The most satisfactory explanation is the presence of two weak X-ray sources, for which we have obtained error boxes. One source is likely to be the peculiar galaxy IC3576, suggested by Margon et al.¹ as the source 2U1231+07=4U1232+07 (ref. 2). The error box resulting from combining our observations with the 4U data strengthen the X-ray identification with this extremely interesting galaxy. There are numerous possibilities for the other X-ray source, and here we discuss one, the interacting pair of galaxies NGC4410a and NGC4410b (NGC4410a/b).

Original language	English (US)
Pages (from-to)	462-463
Number of pages	2
Journal	Nature
Volume	281
Issue number	5731
DOIs	https://doi.org/10.1038/281462a0
State	Published - Dec 1 1979

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title = "HEAO 1 observations of 4U1232+07 [1] (multiple letters)",

abstract = "While performing an analysis of the NRL HEAO 1 observations of the Virgo cluster and 3C273, we detected X-ray emission from a region between these two objects. The most satisfactory explanation is the presence of two weak X-ray sources, for which we have obtained error boxes. One source is likely to be the peculiar galaxy IC3576, suggested by Margon et al.1 as the source 2U1231+07=4U1232+07 (ref. 2). The error box resulting from combining our observations with the 4U data strengthen the X-ray identification with this extremely interesting galaxy. There are numerous possibilities for the other X-ray source, and here we discuss one, the interacting pair of galaxies NGC4410a and NGC4410b (NGC4410a/b).",

author = "Bhavsar, {S. P.} and Ulmer, {Melville P} and Cruddace, {R. G.} and K. Wood and J. Meekins and D. Yentis and W. Evans and H. Smathers and Byram, {E. T.} and Chubb, {T. A.} and H. Friedman",

year = "1979",

month = dec,

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doi = "10.1038/281462a0",

language = "English (US)",

volume = "281",

pages = "462--463",

journal = "Nature",

issn = "0028-0836",

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number = "5731",

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TY - JOUR

T1 - HEAO 1 observations of 4U1232+07 [1] (multiple letters)

AU - Bhavsar, S. P.

AU - Ulmer, Melville P

AU - Cruddace, R. G.

AU - Wood, K.

AU - Meekins, J.

AU - Yentis, D.

AU - Evans, W.

AU - Smathers, H.

AU - Byram, E. T.

AU - Chubb, T. A.

AU - Friedman, H.

PY - 1979/12/1

Y1 - 1979/12/1

N2 - While performing an analysis of the NRL HEAO 1 observations of the Virgo cluster and 3C273, we detected X-ray emission from a region between these two objects. The most satisfactory explanation is the presence of two weak X-ray sources, for which we have obtained error boxes. One source is likely to be the peculiar galaxy IC3576, suggested by Margon et al.1 as the source 2U1231+07=4U1232+07 (ref. 2). The error box resulting from combining our observations with the 4U data strengthen the X-ray identification with this extremely interesting galaxy. There are numerous possibilities for the other X-ray source, and here we discuss one, the interacting pair of galaxies NGC4410a and NGC4410b (NGC4410a/b).

AB - While performing an analysis of the NRL HEAO 1 observations of the Virgo cluster and 3C273, we detected X-ray emission from a region between these two objects. The most satisfactory explanation is the presence of two weak X-ray sources, for which we have obtained error boxes. One source is likely to be the peculiar galaxy IC3576, suggested by Margon et al.1 as the source 2U1231+07=4U1232+07 (ref. 2). The error box resulting from combining our observations with the 4U data strengthen the X-ray identification with this extremely interesting galaxy. There are numerous possibilities for the other X-ray source, and here we discuss one, the interacting pair of galaxies NGC4410a and NGC4410b (NGC4410a/b).

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DO - 10.1038/281462a0

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SP - 462

EP - 463

JO - Nature

JF - Nature

IS - 5731

ER -

HEAO 1 observations of 4U1232+07 [1] (multiple letters)

Abstract

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