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Zoology and wildlife conservation

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Abstracts » Zoology and wildlife conservation

Jet-like features near the nucleus of Chiron

Article Abstract:

Observations of the cometary object, 2060 Chiron, during a stellar occultation reveals that its coma consists of discrete, jet-like features. The presence of these jet-like features indicates that only a few, small active regions have provided the material to form the coma. The particles in the jet-like features have a radii greater than 0.25 micrometers while Chiron has a radius in the range of 83 to 156 kilometers.

Author: Elliot, J.L., Bosh, A.S., Dunham, E.W., Olkin, C.B., Sicardy, B., Lazzaro, D., Buie, M.W., Kurtz, D., Ford, C.H., Gilmore, D.K., Rank, D.M., Temi, P., Bandyopadhyay, R.M., Barroso, J., Barucci, A., Bus, S.J., Dahn, C.C., Foryta, D.W., Hubbard, W.B., Lopes, D.F., Marcialis, R.L., McDonald, S.W., Millis, R.L., Reitsema, H., Schleicher, D.G.
Publisher: Macmillan Publishing Ltd.
Publication Name: Nature
Subject: Zoology and wildlife conservation
ISSN: 0028-0836
Year: 1995
Research, Chiron (Comet), Chiron comet

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A giant planet orbiting the 'extreme horizontal branch' star V391 Pegasi

Article Abstract:

A new giant planetary-mass body has been discovered to be orbiting around the extreme horizontal branch star, V391 Pegasi. The study proves that the planets with very less orbital distances can easily survive the red-giant expansion of their parent stars.

Author: Silvotti, R., Schuh, S., Janulis, R., Zola, S., Solheim, J.E., Bernabei, S., Riddle, R., Oswalt, T.D., Bruni, I., Gualandi, R., Leibowitz, E., Moskalik, P., Bonanno, A., Vauclair, G., Redd, M., C. W. Chen, Kurtz, D., Paparo, M., Baran A., Charpinet, S., Dolez, N., Kawaler, S.
Publisher: Macmillan Publishing Ltd.
Publication Name: Nature
Subject: Zoology and wildlife conservation
ISSN: 0028-0836
Year: 2007
Observations, Orbits (Astrophysics), Orbits

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The one that got away

Article Abstract:

The scientists have recently discovered a new massive gas giant planet orbiting an old star in a rare, late stage of the star's evolution. The analysis helps in studying the diverse array of the planetary systems in our, as well as neighboring galaxies.

Author: Fortney, Jonathan
Publisher: Macmillan Publishing Ltd.
Publication Name: Nature
Subject: Zoology and wildlife conservation
ISSN: 0028-0836
Year: 2007
Stellar evolution

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Subjects list: Discovery and exploration, Extrasolar planets, Red giants
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