Skip to main content

6 Result(s)

within R. N. Martin Remove this filter

and

  1. Article

    A Search for Variability in the HCCN to H2CO Ratio in Comet Hale-Bopp

    We observed submillimeter lines of H2CO and HCN in comet Hale-Bopp near perihelion. One of our goals was to search for short term variability. Our observations are suggestive, but not conclusive, of temporal and/...

    M. D. Hofstadter, P. Hartogh, J. P. McMullin, R. N. Martin… in Earth, Moon, and Planets (1997)

    Download PDF (60 KB)

  2. No Access

    Chapter and Conference Paper

    CO (3-2) Observations of Spiral Galaxies

    We report the detection of the CO J=3-2 line in several nearby galaxies, including M82, M83, and NGC 253. The line intensities indicate that the nuclear gas in these galaxies is very warm (T≳ 30–50K), and ofte...

    J. L. Turner, R. N. Martin, P. T. P. Ho in Submillimetre Astronomy (1990)

  3. No Access

    Chapter and Conference Paper

    Submillimeter Instrument Development at Steward Observatory

    Receiver instrumentation for the UA/MPIfR Submillimeter Telescope (SMT) is being assured through three different mechanisms. (1) There will be standard facility instruments. Initially, these include 460 GHz an...

    R. N. Martin, C. E. Walker, C. K. Walker, R. E. Miller in Submillimetre Astronomy (1990)

  4. No Access

    Chapter and Conference Paper

    The SMT: A Joint Submillimeter Telescope Project of the Mar-Planck-Institut für Radioastronomie and Steward Observatory

    We present a summary of the main features of the SMT project with emphasis on the site and the organisational aspects. Technical features of the telescope are presented in the proceedings of the Zermatt Sympos...

    J. W. M. Baars, E. Krügel, R. N. Martin in Submillimetre Astronomy (1990)

  5. No Access

    Chapter and Conference Paper

    CO J=2-1 Observations Toward Southern HII Regions

    A spectral line receiver system developed at the Max-Planck-Institut für Radioastronomie in Bonn was installed on the ESO 3.6 m and 1 m telescopes in July 1981. The cooled mixer frontend gave DSB receiver temp...

    R. N. Martin, D. T. Emerson, K. Ruf, T. L. Wilson… in Surveys of the Southern Galaxy (1983)

  6. No Access

    Chapter and Conference Paper

    Small Scale Clum** in the Orion Molecular Cloud

    The results of new maps of the Orion Molecular Cloud in lines of NH3 and H2CO are presented. The angular resolution of these maps varies from 1’ (for the 211 – 212 line of H2CO at 14.5 GHz, using the 100-m telesc...

    P. Bastien, J. Bieging, C. Henkel, R. N. Martin… in Regions of Recent Star Formation (1982)