Recursos de colección

Caltech Authors (147.820 recursos)

Repository of works by Caltech published authors.

Group = Palomar Observatory

Mostrando recursos 1 - 11 de 11

  1. More Photographic Giants of Palomar

    Fassero, James S.; Porter, R. W.
    [No abstract]

  2. Giants of Palomar

    Porter, Russell Williams
    [No abstract]

  3. A luminous companion to SGR 1806-20

    van Kerkwijk, M. H.; Kulkarni, S. R.; Matthews, K.; Neugebauer, G.
    We have obtained infrared spectra of the star suggested to be the counterpart of the soft gamma-ray repeater (SGR) 1806-20. We found strong emission lines similar to those seen in the spectra of the rare luminous blue variables and B(e) stars. A He I absorption line is also seen, from which we infer a spectral type O9-B2. This classification, in combination with the minimum distance of greater than or approximately = 6 kpc inferred from its extinction, makes the star one of the most luminous in the Galaxy. We infer that it is a companion to SGR 1806-20 and suggest...

  4. Observing Schedule Survey Log, 1953-1956

    [Observing logs for the Palomar Observatory, run no. 46, July 2/3, 1953, through run no. 77, May 10/11, 1956.]

  5. Observing Schedule Survey Log, 1949 - June 1953

    [Observing logs for the Palomar Observatory, run no. 1, Nov. 10, 1949, through run no. 45, June 1953.]

  6. Frontiers in Space: Official Publication of the Mount Wilson and Palomar Observatories

    Hale, George E.
    The Mount Wilson and Palomar Observatories are situated on two Southern California mountains: the one, Mount Wilson, about 30 miles by road north of Pasadena; and the other, Palomar Mountain, about 130 miles to the southeast. The two observatories, together with the administrative and research centers in Pasadena, are operated jointly by the Carnegie Institution of Washington and the California Institute of Technology in a broad, coordinated program of astronomical research. It is because the two observatories take part in this one unified program that both are included in this one hook. It would he impossible to talk about the past, present, or future of one without reference to the other. Both observatories are largely the result...

  7. A Theory of the Role of Magnetic Activity During Star Formation

    Schatzman, Evry
    Under the assumption that magnetic activity is due to the action of a magnetic field in a rotating star with a convective zone, it is possible to draw the following picture of a sequence of events in the Hertzsprung-Russell diagram. The H-R diagram is divided into two regions by an almost vertical line. Stars of later type have a hydrogen convective zone of great extension (region C); stars of earlier type have no hydrogen convective zone or a convective zone of small extension (region D). Stars in region C show stellar activity of electrodynamic origin like solar activity; stars in region D show little or no stellar activity. When matter...

  8. Dedication of the Palomar Observatory and the Hale Telescope

    Page, James R.; Fosdick, Raymond B.; Mason, Max; DuBridge, Lee A.; Bush, Vannevar; Bowen, Ira S.
    The dedication of the Palomar Observatory, if it were being held in England, would be accompanied by brilliant pageantry both of the state, with its knights, heralds, pursuivants, kings at arms, admirals and captains, and of the church with its bishops, priests and deacons, crucifiers and choirs; and I am sure that we feel the quality of religion in this ceremony. We would hear the choirs chanting in antiphony that great canticle which so delights the choir boys: Benedicite, omnia opera Domini.

  9. National Geographic Society - Palomar Observatory Sky Atlas

    The National Geographic Society-Palomar Observatory Sky Atlas contains photographic reproductions of red- and blue-sensitive photographs of fields obtained with the 48-inch Schmidt telescope of the Palomar Observatory for the National Geographic Society-Palomar Observatory Sky Survey. The atlas covers the entire sky north of -27° declination. The sky survey was made financially possible by generous grants from the National Geographic Society. The Society provided the photographic materials and equipment required, the salaries of the personnel employed full or part time on the survey, and in addition, the production of two contact positives on glass of each survey photograph. One set of these...

  10. First Photos Through Palomar's Giant Eye

    Woodbury, David O.; Lagemann, John Kord
    On these pages you see what no one has ever seen before - the oldest and most remote star worlds ever photographed by man. These are the first official pictures to be taken by the world's largest stargazer, the long-awaited 200-inch Hale telescope on Palomar Mountain in California. The light that made the pictures started on its journey back in the dawn of our world, when primitive light was just beginning to stir on earth.

  11. Palomar Observatory Hale Telescope : Prime Focus Nebular Spectrograph Log Book

    Vaughan, A. H.; Deutsch, A. J.; Arp, Halton; Sandage, A. R.; Sandage, A.; Preston, G. W.; Humason, Milton; Greenstein, J. L.; Minkowski, Rudolph; Münch, G.; Penston, M. V.; Osterbrock, D. E.; Brucato, Robert; Kraft, R. P.; Schmidt, M.; Sargent, Wallace L. W.; Zwicky, F.
    The Prime Focus Nebular Spectrograph was used at the Hale Telescope from June 1950 to June 1973 -- a span of 33 years -- by which time it was supplanted by Cassegrain spectrographs equipped with image intensifiers. In 1981, the instrument (without the two semi-solid Bowen-Schmidt cameras) was given on a long-term loan to the Jet Propulsion Laboratory for use at the Table Mountain Observatory. This book consists of copies of the observing log in which the exposures were recorded. The two original log books have been deposited in the Caltech Archive.

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