Zobrazeno 1 - 10
of 26
pro vyhledávání: '"G. F. Lawrence"'
Autor:
G. F. Lawrence
The Archaeological Journal, 86, 69-98
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d67b4d129e8737fa84283260e70732ab
Publikováno v:
The Astrophysical Journal. 477:817-824
We report 1.25-18.5 μm infrared (IR) photometric measurements acquired during an 850 day period following outburst of the ONeMg "neon nova" V1974 Cygni (Nova Cygni 1992). The decline rates of the 0.55 V, 1.25 J, 1.6 H, and 2.3 μm K light curves all
Autor:
L. Lanteri, A. G. Smith, K. Nilsson, G. F. Lawrence, Walter Kieran Gear, S. Katajainen, Merja Tornikoski, E. M. Moore, G. M. Madejski, H. Teräsranta, E. J. Hooper, W. N. Johnson, E. I. Robson, Reshmi Mukherjee, R. Wichmann, M. Villata, D. B. Pierkowski, A. Witzel, M. Sikora, C. von Montigny, A. Peila, G. de Francesco, J. N. González-Pérez, Jamie Stevens, A. D. Nair, Yiing Lin, C. M. Raiteri, L. O. Takalo, Hugh D. Aller, M. Pohl, Wolfgang Reich, Alan P. Marscher, R. C. Hartman, A. Sillanpää, Monique Aller, S. J. Wagner, M. F. Aller, Philip A. Hughes, Alex Kraus, T. Pursimo, Werner Collmar, M. Chiaberge, G. G. Lichti, G. Ghisellini, M. R. Kidger, M. C. Begelman, I. S. Glass, H. Steppe, S. D. Clements, K. McNaron-Brown, Thomas J. Balonek, Markos Georganopoulos, M. Herter, Pekka Heinämäki, E. Valtaoja
Publikováno v:
AIP Conference Proceedings.
Results from a multiwaveband study of the γ-ray-bright compact radio source 3C 454.3 are presented.
Autor:
G. F. Lawrence
Publikováno v:
Astrophysical Masers ISBN: 9783540563433
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9fc4158dcb2941121d4e45af49bc820f
https://doi.org/10.1007/3-540-56343-1_282
https://doi.org/10.1007/3-540-56343-1_282
Publikováno v:
The Astrophysical Journal. 432:753
Changes in the UV extinction and IR emission were sought in the Herbig Ae/Be star candidate HD 45677 (= FS CMa) by comparing UV, optical, and IR observations made approximately 10 yr apart. HD 45677 varied significantly, becoming more than 50% bright
Publikováno v:
The Astronomical Journal. 107:1111
17 stars in the direction of the Galactic Center, 15 of which are OH/IR stars, have been monitored at infrared wavelengths over a period of nearly eight years. Pulsation periods, bolometric luminosities, and light curves for 14 OH/IR stars are presen
Autor:
Terry J. Jones, Harvey Moseley, R. K. Piña, Sumner Starrfield, Sean Casey, Robert D. Gehrz, Carol J. Koch, F. J. Zickgraf, Barbara Jones, G. F. Lawrence, Otmar Stahl, William J. Glaccum, Kim Venn, Roberta M. Humphreys
Publikováno v:
The Astrophysical Journal. 411:323
New observations were obtained for the OH/IR star IRC +10420, including optical/infrared imaging, spectroscopy, polarimetry, and photometry. The observations, which indicate a very rich and complex circumstellar environment for the star. A model for
Autor:
Henry A. Kobulnicky, James Cole, Tracy Hodge, Harley A. Thronson, Charles E. Woodward, Terry J. Jones, Robert D. Gehrz, G. F. Lawrence
Publikováno v:
The Astrophysical Journal. 408:L37
We present near- and mid-infrared photometry of the post-AGB star FG Sge obtained at two distinct epochs separated by a period of 10 years. Observations of FG Sge taken in 1983 suggest that the 1 to 12 μm energy distribution was produced at that tim
Autor:
G. F. Lawrence, R. L. Pennington, Terry J. Jones, W. A. Zumach, Roberta M. Humphreys, Claia Bryja
Publikováno v:
The Astrophysical Journal. 388:L23
We have identified several faint, red objects in the Hyades region which we believe are very low mass M dwarf and substellar mass brown dwarf members of the Hyades cluster. Proper motions for these stars, measured from Palomar Schmidt plates obtained