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Topic: Sculptor Dwarf


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In the News (Tue 1 Dec 09)

  
  Sculptor (constellation) - Wikipedia, the free encyclopedia
Sculptor is a minor southern constellation which was introduced by Nicolas Louis de Lacaille.
He originally named it after a sculptor's studio, but the name was later shortened.
It also contains the Sculptor System (the Sculptor Dwarf), a dwarf galaxy which is a member of the Local Group; and the Sculptor Group[1], the group of galaxies closest to the Local Group.
en.wikipedia.org /wiki/Sculptor_(constellation)   (142 words)

  
 Canberra Astronomical Society - Southern Cross - November 2001
Sculptor (the sculptor) is a fairly large but obscure southern constellation whose brightest stars are of only about 4th magnitude.
The Sculptor Dwarf - ESO 351-G30 (00 60, -33 42) First discovered photographically in 1938, this galaxy is a dwarf system belonging to the "Local Group" of galaxies which includes the Milky Way, the Andromeda galaxy, the Magellanic Clouds and a number of other dwarf systems.
Sculptor is a great hunting ground for galaxies that range in brightness from bright and easy to extremely faint.
msowww.anu.edu.au /cas/southerncross/sc_200111.html   (2749 words)

  
 Local Group
The Milky Way's satellites include: the Large Magellanic Cloud, the Small Magellanic Cloud, the Sagittarius Dwarf Elliptical, the Ursa Minor Dwarf, the Draco Dwarf, the Carina Dwarf, the Sextans Dwarf, the Sculptor Dwarf, the Fornax Dwarf, Leo I, and Leo II.
The third-largest galaxy, the Triangulum Galaxy (M33), may or may not be an outlying gravitationally-bound companion of M31, but has itself probably the dwarf LGS 3 as a satellite.
The other members of the Local Group, including the Antlia Dwarf and Wolf-Lundmark-Melotte Galaxy, fall outside the main subgroups and float alone in the gravitational seas between the giant group members.
www.daviddarling.info /encyclopedia/L/LocalGroup.html   (454 words)

  
 Sculptor Dwarf concept from the Astronomy knowledge base   (Site not responding. Last check: 2007-10-22)
Sculptor Dwarf concept from the Astronomy knowledge base
Next dwarf elliptical satellite galaxy: Ursa Minor Dwarf Up: dwarf elliptical satellite galaxy Previous dwarf elliptical satellite galaxy: NGC 205
is an instance of dwarf elliptical satellite galaxy
www.site.uottawa.ca:4321 /astronomy/SculptorDwarf.html   (104 words)

  
 Our Galaxy - Our Satellite Galaxies
The last eight dwarfs (small galaxies) are in the direction of the named constellation, but the stars of the constellations are in our own galaxy.
Another dwarf galaxy, the farthest satellite galaxy, is the Leo I dwarf galaxy:
These dwarf galaxies are beyond the view of the unaided eye, and though a telescope might be confused as a globular clusters.
astronomyonline.org /OurGalaxy/SatelliteGalaxies.asp   (499 words)

  
 The Sculptor Group
The Sculptor group is the nearest group of galaxies to the Local Group.
ESO 407-18 (left) is an irregular dwarf galaxy which like NGC 55 is at the front of the Sculptor Group about 6 or 7 million light years from us.
IC 1574 (right) is an irregular dwarf galaxy which is also at the back of this group.
www.atlasoftheuniverse.com /galgrps/scl.html   (554 words)

  
 Chandra Cycle 5 Science Programs
X-rays are ubiquitously found in young pre-main sequence stars of very low masses and Brown Dwarfs, but the observation of LP 944-20 (500 Myrs) supports the idea that X-ray emission evolves as the stars (or Brown Dwarfs) age, on an as yet unknown timescale.
X-ray detections of brown dwarfs have yet been limited to spectral type M. The cool, dense neutral photospheres of L and T dwarfs should hamper magnetic activity.
White dwarfs have possibly the best-understood disks, so symbiotic stars (SS), which are one of most recently identified classes of jet-producing objects, are promising observational targets.
ledas-cxc.star.le.ac.uk /target_lists/cycle5/abstracts_cycle5.html   (6804 words)

  
 Sculptor Abstract   (Site not responding. Last check: 2007-10-22)
We present BV photometry of the Sculptor dwarf spheroidal galaxy to V = 22.
These data give evidence for a bimodality in Sculptor's metallicity distribution based on a discontinuity in the luminosities of horizontal branch stars and by the presence of two distinct red giant branch bumps.
Variations in the global HB morphology of Sculptor can be explained by differences in the radial distribution of these two populations.
www.astro.virginia.edu /~srm4n/sculptor_abstract.html   (125 words)

  
 Dwarf Tales: Alphabetical Abstracts List
Almoznino, E., Brosch, N. Late-Type Dwarf Galaxies in the Virgo Cluster: I. The Samples 1998, MNRAS 298, 920 noah@stsci.edu DT2 (May 98) Almoznino, E., Brosch, N. Late-Type Dwarf Galaxies in the Virgo Cluster: II.
B and R Photometry of Dwarf Galaxies in the M81 Group 1998, A&AS 129, 313 bremnes@astro.unibas.ch DT3 (Jul 98) Bremnes, T., Binggeli, B., Prugniel, P. Structure and Stellar Content of Dwarf Galaxies.
Series, in press (1999) gdc@mso.anu.edu.au http://xxx.lanl.gov/abs/astro-ph/9901258 DT6 (Feb 99) Davies, J., Morshidi-Esslinger, Z., Smith, S. The Distribution of LSB Dwarf Galaxies in the Local Universe To be published in: Proceedings of the XVIIIth Moriond Astrophysics Meeting ``Dwarf Galaxies and Cosmology'', Les Arcs, March 1998, eds.
www.astro.uni-bonn.de /~dwarfs/DTlist.html   (2468 words)

  
 The absolute proper motion and a membership survey of the Sculptor dwarf spheroidal galaxy
Using 26 plates taken over the course of more than half a century, we present proper motions and photometry for 1177 stars in the central region of the Sculptor dwarf spheroidal galaxy, down to a limiting magnitude of V~20.25 at the level of the horizontal branch.
We determined an absolute proper motion for Sculptor, relative to background galaxies, of mu_alpha=+0.036+/-0.022arcsec/century and mu_delta=0.043+/-0.025arcsec/century after correcting for the LSR and peculiar solar motions.
When combined with Sculptor's distance and radial velocity, this measurement shows the dwarf spheroidal to have a space velocity of roughly 220+/-125km/s.
www.cs.wisc.edu /niagara/data/nasa/AJ_110_2747.xml   (269 words)

  
 DART - General Overview
Hubble (1939) noted its similarity to a globular cluster, except for size and distance.
of Sculptor is likely to be 2-3 Gyr younger than a typical globular cluster, such as M92.
The discovery of Fornax was presented in the same paper as the discovery of Sculptor (Shapley 1938, Harvard Bull., 908, 1),
www.astro.rug.nl /~dart/galaxies.html   (1091 words)

  
 Rune Tips :: Quest Guides
The sculptor is located in a small building just east of the Giant Trading Building in East Keldagrim.
Blasidar the sculptor will tell you that he needs you to find three things to help him: a pair of boots, a battleaxe and some clothes.
Talk to the dwarf, and he'll say how he LOVES redberry pie (see Cooking guide for details on how to make it).
www.tip.it /runescape/index.php?rs2quest_id=102   (1416 words)

  
 [No title]
Studies of the neutral gas phase of dwarf galaxies allows the exploration of the effects of star formation on the ISM; energy input via stellar winds and supernovae (collectively termed ``feedback'') will be traceable via kinematic studies of the HI spectral line.
This is one of the clearest examples of neutral gas outflow from a dwarf galaxy to date.
Indeed, since dwarf galaxies are often dominated by single regions of star formation, they are more susceptible to strong variations in the radio continuum emission intensity than larger galaxies; the ratio of activity to disk density and gravity will govern the amount of disruption and blow-out that takes place.
www.mpia-hd.mpg.de /homes/cannon/research.html   (1459 words)

  
 The Sagittarius Dwarf Elliptical Galaxy, SagDEG   (Site not responding. Last check: 2007-10-22)
This dwarf galaxy is called SagDEG (for Sagittarius Dwarf Elliptical Galaxy), or sometimes Sagittarius Dwarf Spheroidal Galaxy; don't confuse it with another member, SagDIG (Sag.
From its stellar contents, it is resembling other low surface brightness members of the local group such as the Sculptor dwarf galaxy, but it is so highly obscured that it was hidden up to the 1994 investigation.
When SagDEG will be disrupted after the current encounter, M54 and the other at least three globulars of this dwarf (Arp 2, Terzan 7 and Terzan 8, which are all much fainter than M54) will be the "remnants", while the other stars will be spread over the galactic halo, or escape as intergalactic travelers.
www.obspm.fr /messier/more/SagdEg.html   (530 words)

  
 Local Group of Galaxies
The Sculptor Dwarf System is a dwarf galaxy discovered by Harlow Shapley on a photograph taken in 1937 with the 24 inch Bruce refractor in South Africa.
The Sculptor Dwarf Galaxy is about 300,000 light years away, about half again the distance to the Magellanic Clouds.
The Sculptor System is one of the most difficult objects we have ever observed.
www.saguaroastro.org /content/Local-Group-of-Galaxies.htm   (774 words)

  
 Astrophysics of the Local Group: Spring 2002 Visiting Lecturers
Typically dwarf spheroidals are thought to have formed all of their stars in old and intermediate-aged bursts, and to be devoid of gas today.
Thus, perhaps Sculptor does not have H I. The image at right, of Sculptor Dwarf Spheroidal Galaxy (the cluster in the center), shows that extensive high velocity clouds are all around the relgion and perhaps not associated directly with Sculptor.
The brown dwarf itself is invisible, but it creates a visible disturbance in the light paths it passes through.
www.macalester.edu /astronomy/courses/physics50/spring2002.html   (2732 words)

  
 Ultimate Challenges   (Site not responding. Last check: 2007-10-22)
Hunting for the elusive Sculptor Dwarf Galaxy is a case in point.
The Sculptor Dwarf along with the somewhat larger Fornax System were discovered by Harlow Shapley in 1938.
He was able to observe many of the dim dwarf galaxies with his 33 cm scope under dark Arizona skies.
www.angelfire.com /id/jsredshift/ultimate.htm   (2010 words)

  
 List of satellites of the Milky Way - Simple English Wikipedia
Canis Major Dwarf Galaxy - 25,000 ly (satellite of Milky Way)
Draco Dwarf - 248,000 ly (satellite of Milky Way)
Sculptor Dwarf - 254,000 ly (satellite of Milky Way)
simple.wikipedia.org /wiki/List_of_satellites_of_the_Milky_Way   (175 words)

  
 4 Conclusions   (Site not responding. Last check: 2007-10-22)
database on the Sculptor dwarf galaxy (Kaluzny et al.
Considering the periods, these stars are very similar to the ones found in the Galactic globular cluster IC 4499 (Walker and Nemec 1996).
We derived individual metallicities for the Sculptor RRd variables by using the results of our former analyses on RRd stars in various stellar systems.
aanda.u-strasbg.fr:2002 /papers/aa/full/2001/32/aa1189/node4.html   (552 words)

  
 DOC: Uranometria chart 351
THE TANTALIZINGLY LARGE Sculptor Dwarf Galaxy sprawls over a degree on this map, which is almost totally devoted to Sculptor.
But the Sculptor system was also detected on a plate exposed for 23.3 hours with a 1-inch f/13 patrol camera, which revealed it as a very dim, unresolved smudge.
AJ Crayon, using an 8” f6 Newtonain, notes: “is an elliptical galaxy that is better known as the Sculptor Dwarf.
www.fortunecity.com /roswell/borley/49/u351.htm   (1589 words)

  
 Peter Frinchaboy's Research Page
Some of the results from this project were presented in a poster at the conference "Chemical Abundances and Mixing in Stars in the Milky Way and its Satellites", held September 12-17, 2004 near Grosseto, Italy.
First results on the Carina dwarf spheroidal show an extended distribution of giant stars beyond the nominal tidal radius for the galaxy.
Current work is being done on the Carina, Sculptor, Ursa Minor, and Sagittarius dwarf spheroidals and a number of globular clusters.
www.astro.virginia.edu /~pmf8b/research.html   (1728 words)

  
 The Local Group of Galaxies
Using distances to each galaxy taken from a short summary of the dwarf members of the Local Group.
Galaxy Distance (light years) Sculptor (Scl) 260 000 Draco (Dra) 270 000 Fornax (For) 450 000 Leo II 670 000 Leo I 830 000 Andromeda 2 300 000
A recent census finds over 25 dwarf galaxies in the Local Group.
spiff.rit.edu /classes/phys230/lectures/local_group/local_group.html   (868 words)

  
 [113.01] New Stellar Abundances in the Sculptor Dwarf Spheroidal Galaxy   (Site not responding. Last check: 2007-10-22)
Elemental abundances for 10 red giants in the Sculptor dwarf galaxy are presented based on VLT FLAMES/UVES fiber spectroscopy.
These spectra were taken simultaneously with an additional 91 stars in Sculptor using the VLT FLAMES/GIRAFFE spectra, which reaches more stars but over smaller and discrete wavelength intervals.
All abundances from UVES spectra are compared to each other, and to Galactic stars, and discussed in terms of nucleosynthesis and dwarf galaxy chemical evolution.
www.aas.org /publications/baas/v37n4/aas207/916.htm   (213 words)

  
 H II Regions in Sculptor Group Dwarf Galaxies
The first results of a thesis project to study the star formation histories of dwarf galaxies in the nearby Sculptor Group are presented.
The first stage of this project involves determining the global current star-formation rates in these galaxies from H$\alpha$ imaging and their oxygen abundances from nebular spectroscopy.
Distances were assigned based on known distances to other Sculptor Group galaxies, known H~I velocities, and the degree to which these galaxies resolved into stars in broad-band images.
www.aas.org /publications/baas/v25n2/aas182/abshtml/S6007.html   (204 words)

  
 An Internal Second Parameter Problem in the Sculptor Dwarf Spheroidal Galaxy (ResearchIndex)
Abstract: We present BV photometry of the Sculptor dwarf galaxy to V = 22.
These data give evidence for a bimodality in Sculptor's metallicity distribution based on a discontinuity in the luminosities of horizontal branch (HB) stars and by the presence of two distinct red giant branch (RGB) bumps.
A consistent picture of the evolved stars in Sculptor is given by the presence of (1) a metal-poor population of [Fe=H] \Gamma2:3 with an exclusively blue HB and that corresponds to the blueward side of...
citeseer.ist.psu.edu /322251.html   (254 words)

  
 Sculpture by Floyd Wanner
The Sculptor Group of Galaxies (also South Polar Group) This is the closest group of galaxies to our Local Group, at only about 10 million light years distance.
Colors for Static Background, Hover Background, and Text can be modified to suit as can size of table, text size and font-face via modification of the style sheet.
Skull - by Laurie Campbell This model and the 3 that follow it were created with the Microscribe 3DX digitizer and Sculptor NT, exported to 3D studio Max for completion and rendering.
www.sculpturebywanner.com /webopt/image-sculptor.htm   (347 words)

  
 Visitors' Seminar: Tidal Structure in Galactic Satellites   (Site not responding. Last check: 2007-10-22)
I will present the results for two of these systems, the Fornax and Sculptor dwarf spheroidal galaxies.
Photometry in two filters allowed the majority of contaminating foreground stars to be removed, and thus the outer structure of each system was revealed in previously unseen detail.
Our results for Sculptor indicate that it is experiencing, at most, a low level of interaction with the Galaxy - this system contains little or no extra-tidal material.
www.mpia-hd.mpg.de /ORG/vissem/coleman.html   (164 words)

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