Abstract
We report the initial results from a program of HST/STIS spectroscopy of “hot” low-mass (brown dwarf) companions to nearby young stars identified in our HST/NICMOS coronagraphic imaging survey. We present spectra of the likely 20 and 40 Jupiter mass companions to CD -33° 7795 and HR 7329, respectively, the binary companions to GL 577 (both, possibly, brown dwarfs), and the low-mass star GL 503.2B. We discuss the state of our recent follow-up observations of the putative companion to TWA 6. We add these companions to the very few already known, allowing the first steps to be taken toward answering many fundamental questions regarding the formation and evolution of multiple systems with components near and below the stellar/substellar boundary.
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
Preview
Unable to display preview. Download preview PDF.
References
H.A. Abt, N.I. Morrell, ApJ, 99, S135 (1995)
I. Baraffe, G. Chabrier, F. Allard, P.H. Hauschildt: A&A. 337, 403 (1998)
D. Barrado, Y Navascues, J.R. Stauffer: A&A. 310, 879 (1996)
A.P. Boss: ‘Modes of Gaseous Planet Formation’. In: Planetary Systems in the Universe, IAU Sumposium 202, August 2000.
A.J. Burgasser et al.: ApJ 531, L57 (2000)
A. Burrows et al.: ‘The Spectral Character of Giant Planets and Brown Dwarfs’. In: ASP Conf. Ser. 154, The Tenth Cambridge Workshop on Cool Stars, Stellar Systems and the Sun ed. by R. A. Donahue and J. A. Bookbinder, p.27 (1998)
F. D’Antona, I. Mazzitelli: Mem. Soc. Astron. Italiana, 68, 807 (1997)
A. Dressler: HST and Beyond: Exploration and the Search for Origins, (AURA, Washington, DC 1996).
X. Fan et al.: AJ 119, 928 (2000)
J.E. Gizis, D.G. Monet, I.N. Reid, J.D. Kirkpatrick, J. Liebert, R.J. Williams: AJ 120, 1085 (2000)
J.L. Hallwachs, F. Arenou, M. Mayor, S. Udry, D Queloz: A&A 355, 581, 2000
J.H. Kastner, B. Zuckerman, D.A. Weintraub, T. Forveille: Science 227, 67 (1997)
J.D. Kirkpatrick et al.: AJ 120, 447 (2000)
P.J. Lowrance et al.:‘A Coronagraphic Search for Substellar Companions to Young Stars’. In: NICMOS and the VLT: A New Era of High Resolution Near Infrared Imaging and Spectroscopy, Pula, Sardinia, Italy, May 26-27, 1998 ed. by W. Freudling, R. Hook (ESO, Garching, 1998), pp. 96–101.
P.J. Lowrance et al.: ApJ 512, 69 (1999)
P.J. Lowrance et al.: ApJ 541, 390 (2000)
P.J. Lowrance et al.: ApJ submitted (2000)
K.L. Luhman et al.: ApJ 540, 1016 (2000)
G.W. Marcy, W.D. Cochran, D. Mayor: ‘Extrasolar Planets Around Main-Sequwnce Stars’. In: Protostars and Planets IV. ed. by V. Mannings, A.P. Boss, S.S. Russell (University of Arizona Press, Tucson, 2000), pp. 1285–1311
G.W. Marcy, P.R. Butler: PASP, 112, 137 (2000)
M. Mayor, D. Queloz: Nature 378, 355 (1995)
S. Messina, E.F. Guinan, A.F. Lanza: Ap&SS (260), 493 (1999)
R. Mundt, C.A.L. Bailer-Jones, M.R. Zapatero Osorio, V.J.S. Bejar, R. Rebolo, D. Barrado, Y Navascues, E.L. Martin: ‘Discovery of Very Young Free-floating Giant Planets in the Sigma Orionis Cluster’. In: Astronomische Gesellschaft Abstract Series, Vol.17. Abstracts of Contributed Talks and Posters at the Annual Scientific Meeting of the Astronomische Gesellschaft at Bremen, September 18-23, 2000 pp 11.
T. Nakajima, B.R. Oppenheimer, S.R. Kulkarni, D.A. Golimowski, K. Matthews, S.T. Durrance: Nature 378, 463 (1995)
R. Neuhäu ser, E.W. Guenter, M.G. Petr, W. Brandner, N. Huèlamo, J. Alves: A&A 360, L39 (2000)
B.R. Oppenheimer, S.R. Kulkarni, K, Matthews, T. Nakajima: Science 270, 1478 (1995)
G. Schneider,:‘NICMOS Coronagraphic Surveys: Preliminary Results’. In: NIC-MOS and the VLT: A New Era of High Resolution Near Infrared Imaging and Spectroscopy, Pula, Sardinia, Italy, May 26-27, 1998 ed. by W. Freudling, R. Hook (ESO, Garching, 1998), pp. 88–95
G. Schneider, R.I. Thompson, B.A. Smith, R.J. Terrile: ‘Exploration of the Environments of Nearby Stars with the NICMOS Coronagraph: Instrumental Performance Considerations’. In: Space Telescopes and Instrumentation V., Proc. of the SPIE, Vol. 3356 ed. by P. Bely, J. Breckinridge (SPIE, Kona 1998), pp. 215
G. Schneider, E.E. Becklin, P.J. Lowrance, B.A. Smith: ‘Substellar Companions to Nearby Stars from NICMOS Surveys’. In: Disks, Planets and Planetesimals, ASP Conference Series ed. by F. Garzon, C. Eiroa, D. de Winter, T.J. Mahoney (ASP 2000) in press.
A.B. Schultz et al: ApJ 492, L181 (1998)
D.R. Soderblom, J.R. Stauffer, K.B. MacGregor, B.F. Jones: AJ 105, 2299 (1993)
D.R. Soderblom et al: ApJ 498, 385 (1998)
Z.I. Tsvetanov et al.: ApJ 531, 61 (2000)
R.A. Webb, B. Zuckerman, I. Platais, J. Patience, R.J. White, M.J. Schwarz, C. McCarthy: ApJ 512, L63 (1999)
B. Zuckerman, R.A. Webb: ApJ 535, 959 (2000).
Author information
Authors and Affiliations
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 2001 Springer-Verlag Berlin Heidelberg
About this paper
Cite this paper
Schneider, G. et al. (2001). Imaging and Spectroscopy of Hot (Young) “Ultracool” Companions. In: Jones, H.R.A., Steele, I.A. (eds) Ultracool Dwarfs. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-56672-1_6
Download citation
DOI: https://doi.org/10.1007/978-3-642-56672-1_6
Publisher Name: Springer, Berlin, Heidelberg
Print ISBN: 978-3-642-62682-1
Online ISBN: 978-3-642-56672-1
eBook Packages: Springer Book Archive