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Collection:
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NASA Hubble Space Telescope Collection
Collection
NASA Hubble Space Telescope Collection
Collection
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Title:
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Artist's Illustration of Beta Pictoris Gas Disk
Title
Artist's Illustration of Beta Pictoris Gas Disk
Title
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Object Name:
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Beta Pictoris
Object_Name
Beta Pictoris
Object Name
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Acknowledgement:
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Acknowledgement
Acknowledgement
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Fast Facts:
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note:
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*Image Type:*: Artwork
note
*Image Type:*: Artwork
note
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note:
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*Release Date*:May 17, 1991 12:00 AM (EDT)
note
*Release Date*:May 17, 1991 12:00 AM (EDT)
note
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note:
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*News Release Number:*: STScI-1991-08a
note
*News Release Number:*: STScI-1991-08a
note
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note:
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*Title*:Artist's Illustration of Beta Pictoris Gas Disk
note
*Title*:Artist's Illustration of Beta Pictoris Gas Disk
note
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note:
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*Description*:
This is an artist's concept of the near stellar environment of the star Beta Pictoris. This illustration is based upon recent observations made with the Goddard High Resolution Spectrograph aboard the Hubble Space Telescope.
This illustration shows three major components of the near stellar region, which is roughly the size of our inner Solar System. The reddish center ring (C) is a diffuse gas disk, which has a stable orbit around the star. This ring surrounds an inner disk (D) of gas which is slowly drifting toward the star. The white "comet-like" features in this bluish disk are dense streams of gas spiraling down the star gravitational potential "well." The outer filamentary structures (A&B), first detected by the Space Telescope, may be an expanding gas halo, or foreground features seen in the local interstellar medium.
The disk's structure and dynamics are inferred from the GHRS spectra of Fe II line profiles (left.) The spectra taken on January 12, 1991 (bold line) are markedly different form those taken 23 days later, (thin line) on February 4. This indicates the presence of a "lumpy" turbulent cloud of moving gas which dramatically changes the structure of gas over a short time periods.
A ground based view of the Beta Pictoris system (upper left) shows that the gas disk is embedded deep within a much broader disk of dust particles more than 100 billion kilometers across which has been detected previously in ground based observations.
note
*Description*:
This is an artist's concept of the near stellar environment of the star Beta Pictoris. This illustration is based upon recent observations made with the Goddard High Resolution Spectrograph aboard the Hubble Space Telescope.
This illustration shows three major components of the near stellar region, which is roughly the size of our inner Solar System. The reddish center ring (C) is a diffuse gas disk, which has a stable orbit around the star. This ring surrounds an inner disk (D) of gas which is slowly drifting toward the star. The white "comet-like" features in this bluish disk are dense streams of gas spiraling down the star gravitational potential "well." The outer filamentary structures (A&B), first detected by the Space Telescope, may be an expanding gas halo, or foreground features seen in the local interstellar medium.
The disk's structure and dynamics are inferred from the GHRS spectra of Fe II line profiles (left.) The spectra taken on January 12, 1991 (bold line) are markedly different form those taken 23 days later, (thin line) on February 4. This indicates the presence of a "lumpy" turbulent cloud of moving gas which dramatically changes the structure of gas over a short time periods.
A ground based view of the Beta Pictoris system (upper left) shows that the gas disk is embedded deep within a much broader disk of dust particles more than 100 billion kilometers across which has been detected previously in ground based observations.
note
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facet_what:
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Hubble Space Telescope (HST)
facet_what
Hubble Space Telescope (HST)
facet_what
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facet_when:
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May 17, 1991
facet_when
May 17, 1991
facet_when
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facet_when:
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January 12, 1991
facet_when
January 12, 1991
facet_when
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facet_when_year:
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1991
facet_when_year
1991
facet_when_year
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UID:
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SPD-HUBBLE-STScI-199 1-08a
UID
SPD-HUBBLE-STScI-199 1-08a
UID
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original url:
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original_url
original url
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Release Date:
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May 17, 1991 12:00 AM (EDT)
Release_Date
May 17, 1991 12:00 AM (EDT)
Release Date
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