A Pan-STARRS1 VIEW OF THE BIFURCATED SAGITTARIUS STREAM

C. T. Slater; E. F. Bell; E. F. Schlafly; M. Juric; N. F. Martin; H. -W. Rix; E. J. Bernard; W. S. Burgett; K. C. Chambers; D. P. Finkbeiner; B. Goldman; N. Kaiser; E. A. Magnier; E. P. Morganson; P. A. Price; J. L. Tonry

doi:10.1088/0004-637X/762/1/6

A Pan-STARRS1 VIEW OF THE BIFURCATED SAGITTARIUS STREAM

C. T. Slater^*, E. F. Bell, E. F. Schlafly, M. Juric, N. F. Martin, H. -W. Rix, E. J. Bernard, W. S. Burgett, K. C. Chambers, D. P. Finkbeiner, B. Goldman, N. Kaiser, E. A. Magnier, E. P. Morganson, P. A. Price, J. L. Tonry

^*Corresponding author for this work

School of Physics and Astronomy

Research output: Contribution to journal › Article › peer-review

Abstract / Description of output

We use data from the Pan-STARRS1 survey to present a panoramic view of the Sagittarius tidal stream in the southern Galactic hemisphere. As a result of the extensive sky coverage of Pan-STARRS1, the southern stream is visible along more than 60 degrees of its orbit, nearly double the length seen by the Sloan Digital Sky Survey. The recently discovered southern bifurcation of the stream is also apparent, with the fainter branch of the stream visible over at least 30 degrees. Using a combination of fitting both the main-sequence turnoff and the red clump, we measure the distance to both arms of the stream in the south. We find that the distances to the bright arm of the stream agree very well with the N-body models of Law & Majewski. We also find that the faint arm lies similar to 5 kpc closer to the Sun than the bright arm, similar to the behavior seen in the northern hemisphere.

Original language	English
Article number	6
Number of pages	9
Journal	Astrophysical Journal
Volume	762
Issue number	1
DOIs	https://doi.org/10.1088/0004-637X/762/1/6
Publication status	Published - 1 Jan 2013

Keywords / Materials (for Non-textual outputs)

Galaxy: halo
Galaxy: structure
Local Group
DIGITAL SKY SURVEY
DWARF SPHEROIDAL GALAXY
GIANT BRANCH TIP
RED CLUMP STARS
RR-LYRAE STARS
MILKY-WAY
GALACTIC HALO
TIDAL STREAM
PHOTOMETRIC CALIBRATION
STELLAR STREAM

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Slater, C. T., Bell, E. F., Schlafly, E. F., Juric, M., Martin, N. F., Rix, H. .-W., Bernard, E. J., Burgett, W. S., Chambers, K. C., Finkbeiner, D. P., Goldman, B., Kaiser, N., Magnier, E. A., Morganson, E. P., Price, P. A., & Tonry, J. L. (2013). A Pan-STARRS1 VIEW OF THE BIFURCATED SAGITTARIUS STREAM. Astrophysical Journal, 762(1), Article 6. https://doi.org/10.1088/0004-637X/762/1/6

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title = "A Pan-STARRS1 VIEW OF THE BIFURCATED SAGITTARIUS STREAM",

abstract = "We use data from the Pan-STARRS1 survey to present a panoramic view of the Sagittarius tidal stream in the southern Galactic hemisphere. As a result of the extensive sky coverage of Pan-STARRS1, the southern stream is visible along more than 60 degrees of its orbit, nearly double the length seen by the Sloan Digital Sky Survey. The recently discovered southern bifurcation of the stream is also apparent, with the fainter branch of the stream visible over at least 30 degrees. Using a combination of fitting both the main-sequence turnoff and the red clump, we measure the distance to both arms of the stream in the south. We find that the distances to the bright arm of the stream agree very well with the N-body models of Law & Majewski. We also find that the faint arm lies similar to 5 kpc closer to the Sun than the bright arm, similar to the behavior seen in the northern hemisphere.",

keywords = "Galaxy: halo, Galaxy: structure, Local Group, DIGITAL SKY SURVEY, DWARF SPHEROIDAL GALAXY, GIANT BRANCH TIP, RED CLUMP STARS, RR-LYRAE STARS, MILKY-WAY, GALACTIC HALO, TIDAL STREAM, PHOTOMETRIC CALIBRATION, STELLAR STREAM",

author = "Slater, {C. T.} and Bell, {E. F.} and Schlafly, {E. F.} and M. Juric and Martin, {N. F.} and Rix, {H. -W.} and Bernard, {E. J.} and Burgett, {W. S.} and Chambers, {K. C.} and Finkbeiner, {D. P.} and B. Goldman and N. Kaiser and Magnier, {E. A.} and Morganson, {E. P.} and Price, {P. A.} and Tonry, {J. L.}",

year = "2013",

month = jan,

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doi = "10.1088/0004-637X/762/1/6",

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AU - Slater, C. T.

AU - Bell, E. F.

AU - Schlafly, E. F.

AU - Juric, M.

AU - Martin, N. F.

AU - Rix, H. -W.

AU - Bernard, E. J.

AU - Burgett, W. S.

AU - Chambers, K. C.

AU - Finkbeiner, D. P.

AU - Goldman, B.

AU - Kaiser, N.

AU - Magnier, E. A.

AU - Morganson, E. P.

AU - Price, P. A.

AU - Tonry, J. L.

PY - 2013/1/1

Y1 - 2013/1/1

N2 - We use data from the Pan-STARRS1 survey to present a panoramic view of the Sagittarius tidal stream in the southern Galactic hemisphere. As a result of the extensive sky coverage of Pan-STARRS1, the southern stream is visible along more than 60 degrees of its orbit, nearly double the length seen by the Sloan Digital Sky Survey. The recently discovered southern bifurcation of the stream is also apparent, with the fainter branch of the stream visible over at least 30 degrees. Using a combination of fitting both the main-sequence turnoff and the red clump, we measure the distance to both arms of the stream in the south. We find that the distances to the bright arm of the stream agree very well with the N-body models of Law & Majewski. We also find that the faint arm lies similar to 5 kpc closer to the Sun than the bright arm, similar to the behavior seen in the northern hemisphere.

AB - We use data from the Pan-STARRS1 survey to present a panoramic view of the Sagittarius tidal stream in the southern Galactic hemisphere. As a result of the extensive sky coverage of Pan-STARRS1, the southern stream is visible along more than 60 degrees of its orbit, nearly double the length seen by the Sloan Digital Sky Survey. The recently discovered southern bifurcation of the stream is also apparent, with the fainter branch of the stream visible over at least 30 degrees. Using a combination of fitting both the main-sequence turnoff and the red clump, we measure the distance to both arms of the stream in the south. We find that the distances to the bright arm of the stream agree very well with the N-body models of Law & Majewski. We also find that the faint arm lies similar to 5 kpc closer to the Sun than the bright arm, similar to the behavior seen in the northern hemisphere.

KW - Galaxy: halo

KW - Galaxy: structure

KW - Local Group

KW - DIGITAL SKY SURVEY

KW - DWARF SPHEROIDAL GALAXY

KW - GIANT BRANCH TIP

KW - RED CLUMP STARS

KW - RR-LYRAE STARS

KW - MILKY-WAY

KW - GALACTIC HALO

KW - TIDAL STREAM

KW - PHOTOMETRIC CALIBRATION

KW - STELLAR STREAM

U2 - 10.1088/0004-637X/762/1/6

DO - 10.1088/0004-637X/762/1/6

M3 - Article

SN - 0004-637X

VL - 762

JO - Astrophysical Journal

JF - Astrophysical Journal

IS - 1

M1 - 6

ER -

A Pan-STARRS1 VIEW OF THE BIFURCATED SAGITTARIUS STREAM

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Keywords / Materials (for Non-textual outputs)

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