Subject: Новая планета
Date   : 20 Jun 1998 09:20 GMT
From   : Vladimir Sazonov [vladimir] (vladimir@berlin.snafu.de)
To     : All

Вот также информация из Интернета

http://oposite.stsci.edu/pubinfo/pr/1998/19/a.html


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HUBBLE'S FIRST DIRECT LOOK AT POSSIBLE PLANET AROUND ANOTHER STAR
This NASA Hubble Telescope near-infrared image of newborn binary stars
(image center) reveals a long thin nebula pointing toward a faint
companion object (bottom left) which could be the first extrasolar
planet to be imaged directly.

The brightest objects in the image are the binary protostars, which
illuminate an extended cloud of gas and dust (image center) from which
the stars formed. So much dust surrounds these protostars that they
are virtually invisible at optical wavelengths. However, near-infrared
light penetrates the overlying dust, revealing the newborn stars
within. The faint multicolor cross extending from the neighborhood of
the binary is an artifact produced when HST observes bright stars.

At lower left there is a point of light many times fainter than the
binary. Theoretical calculations indicate that this companion is much
too dim to be an ordinary star; instead, a hot young protoplanet
several times the mass of Jupiter is consistent with the observed
brightness. The candidate protoplanet appears at a distance of 130
billion miles from the binary (1400 times the Earth's distance from
the Sun). A bright streak of nebulosity extends from the binary toward
the faint companion, possibly indicating that the protoplanet was
ejected from the binary system.

Current models predict that very young giant planets are still warm
from gravitational contraction and formation processes, with
temperatures as high as a few thousand degrees Fahrenheit. This makes
them relatively bright in infrared light compared to old giant planets
such as Jupiter. Even so, young planets are difficult to find in new
solar systems because the glare of the central star drowns out their
feeble glow. Young planets ejected from binary systems would therefore
represent a unique opportunity to study extrasolar planets with
current astronomical technology.

The image was taken on August 4, 1997 with the Near Infrared Camera
and Multi-Object Spectrometer (NICMOS) in three wavelengths (1.6, 1.9,
and 2.05 microns). The members of the research team include Susan
Terebey (Extrasolar Research Corp.), Dave Van Buren, Deborah L.
Padgett, Jet Propulsion Lab, Pasadena, CA (JPL), Terry Hancock
(Extrasolar Research Corp.), and Michael Brundage, JPL.

Image Credit: Susan Terebey (Extrasolar Research Corp.), and NASA

FAST FACTS:
Star Name:    TMR-1 (Taurus Molecular Ring, star 1 - binary)
Planet name:    TMR-1C
Constellation:    Taurus
Coordinates:    4h39m15s RA, +25¦53' Dec.
Distance:    450 light-years
Field of view:    19 arseconds