메뉴 건너뛰기




Volumn 279, Issue 5358, 1998, Pages 1910-1913

Detection of H3+ in the diffuse interstellar medium toward Cygnus OB2 No. 12

Author keywords

[No Author keywords available]

Indexed keywords

CARBON MONOXIDE; PROTON; MONOVALENT CATION; TRITIUM;

EID: 0032549180     PISSN: 00368075     EISSN: None     Source Type: Journal    
DOI: 10.1126/science.279.5358.1910     Document Type: Article
Times cited : (191)

References (37)
  • 1
    • 0001347826 scopus 로고
    • E. Herbst and W. Klemperer, Astrophys. J. 185, 505 (1973); W. D. Watson, ibid. 183, L17 (1973); ibid. 188, 35 (1974).
    • (1973) Astrophys. J. , vol.185 , pp. 505
    • Herbst, E.1    Klemperer, W.2
  • 2
    • 0012985801 scopus 로고
    • E. Herbst and W. Klemperer, Astrophys. J. 185, 505 (1973); W. D. Watson, ibid. 183, L17 (1973); ibid. 188, 35 (1974).
    • (1973) Astrophys. J. , vol.183
    • Watson, W.D.1
  • 3
    • 25344449736 scopus 로고
    • E. Herbst and W. Klemperer, Astrophys. J. 185, 505 (1973); W. D. Watson, ibid. 183, L17 (1973); ibid. 188, 35 (1974).
    • (1974) Astrophys. J. , vol.188 , pp. 35
  • 8
    • 26744478173 scopus 로고    scopus 로고
    • A. J. Adamson, D. C. B. Whittet, W. W. Duley, Mon. Not. R. Astron. Soc. 243, 400 (1990); D. C. B. Whittet et al., Astrophys. J. 490, 729 (1997).
    • (1997) Astrophys. J. , vol.490 , pp. 729
    • Whittet, D.C.B.1
  • 11
    • 7144226322 scopus 로고
    • v is the number of magnitudes by which a star would be brighter if there were no interstellar absorption. Magnitude is defined as -2.5 log (brightness), so -2.5 magnitudes corresponds to one power of ten in brightness.
    • (1957) Publ. Astron. Soc. Pac. , vol.69 , pp. 239
    • Sharpless, S.1
  • 15
    • 0025629353 scopus 로고
    • The UKIRT is operated by the Joint Astronomy Centre on behalf of the U.K. Particle Physics and Astronomy Research Council. CGS4 is a grating spectrometer for the region from 1 to 5 μm, currently incorporating a 256 by 256 InSb array. For details on the CGS4 spectrometer, see C. M. Mountain, D. J. Robertson, T. J. Lee, R. Wade, Proc. Soc. Photo.-Opt. Instrum. Eng. 1235, 25 (1990).
    • (1990) Proc. Soc. Photo.-Opt. Instrum. Eng. , vol.1235 , pp. 25
    • Mountain, C.M.1    Robertson, D.J.2    Lee, T.J.3    Wade, R.4
  • 16
    • 7144250889 scopus 로고    scopus 로고
    • in press
    • The KPNO, a division of the National Optical Astronomy Observatories, is operated by the Association of Universities for Research in Astronomy, Inc., under cooperative agreement with the National Science Foundation. For details on the Phoenix spectrometer, see K. H. Hinkle et al., Proc. Soc. Photo.-Opt. Instrum. Eng., in press.
    • Proc. Soc. Photo.-Opt. Instrum. Eng.
    • Hinkle, K.H.1
  • 17
    • 7144262106 scopus 로고    scopus 로고
    • note
    • 13CO (J = 2→1) were also obtained at the James Clerk Maxwell Telescope (JCMT) on 5 August 1997 and 13 November 1997, respectively. The JCMT is operated by the Joint Astronomy Centre on behalf of the U.K. Particle Physics and Astronomy Research Council, the Netherlands Organisation for Scientific Research, and the National Research Council of Canada. We obtained the CO measurements at the JCMT using the heterodyne receiver A2.
  • 18
    • 7144229002 scopus 로고    scopus 로고
    • note
    • 2 were provided to us by J. K. G. Watson.
  • 19
    • 7144252844 scopus 로고    scopus 로고
    • note
    • + data, although the systematic uncertainty due to atmospheric interference is difficult to estimate.
  • 20
    • 2742526950 scopus 로고
    • + chemistry in the interstellar medium have been discussed in the literature. See, for example, S. Lepp, A. Dalgarno, A. Sternberg Astrophys. J. 321, 383 (1987), and J. H. Black, E. F. van Dishoeck, S. P. Winner, R. C. Woods, ibid. 358, 459 (1990).
    • (1987) Astrophys. J. , vol.321 , pp. 383
    • Lepp, S.1    Dalgarno, A.2    Sternberg, A.3
  • 21
    • 0001366074 scopus 로고
    • + chemistry in the interstellar medium have been discussed in the literature. See, for example, S. Lepp, A. Dalgarno, A. Sternberg Astrophys. J. 321, 383 (1987), and J. H. Black, E. F. van Dishoeck, S. P. Winner, R. C. Woods, ibid. 358, 459 (1990).
    • (1990) Astrophys. J. , vol.358 , pp. 459
    • Black, J.H.1    Van Dishoeck, E.F.2    Winner, S.P.3    Woods, R.C.4
  • 23
    • 7144258797 scopus 로고    scopus 로고
    • note
    • + chemistry.
  • 29
    • 0001604316 scopus 로고
    • v/E(B-V) = 3.09 [G. H. Rieke and M. J. Lebofsky, Astrophys. J. 288, 618 (1985)]. The optical depth of the silicate feature at 9.7 μm [G. H. Rieke, Astrophys. J. 193, L81 (1974)] may also constrain the column density of H.
    • (1978) Astrophys. J. , vol.224 , pp. 132
    • Bohlin, R.C.1    Savage, B.D.2    Drake, J.F.3
  • 30
    • 0000011228 scopus 로고
    • v/E(B-V) = 3.09 [G. H. Rieke and M. J. Lebofsky, Astrophys. J. 288, 618 (1985)]. The optical depth of the silicate feature at 9.7 μm [G. H. Rieke, Astrophys. J. 193, L81 (1974)] may also constrain the column density of H.
    • (1985) Astrophys. J. , vol.288 , pp. 618
    • Rieke, G.H.1    Lebofsky, M.J.2
  • 31
    • 0041369511 scopus 로고
    • v/E(B-V) = 3.09 [G. H. Rieke and M. J. Lebofsky, Astrophys. J. 288, 618 (1985)]. The optical depth of the silicate feature at 9.7 μm [G. H. Rieke, Astrophys. J. 193, L81 (1974)] may also constrain the column density of H.
    • (1974) Astrophys. J. , vol.193
    • Rieke, G.H.1
  • 36
    • 7144261430 scopus 로고    scopus 로고
    • note
    • We thank G. Sandell and R. P. Tilanus for obtaining the JCMT CO spectra; E. Herbst, L. M. Hobbs, T. P. Snow, P. Thaddeus, and E. F. van Dishoeck for helpful conversations and correspondences; and J. H.
  • 37
    • 7144262107 scopus 로고    scopus 로고
    • note
    • 2 data and for many other helpful comments. B. J.M. is supported by the Fannie and John Hertz Foundation. The University of Chicago portion of this work was supported by NSF grant PHYS-9722691 and NASA grant NAG5-4234.


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.