J/AJ/137/4377 List of SEGUE plate pairs (Yanny+, 2009)
SEGUE: a spectroscopic survey of 240,000 stars with g = 14-20.
Yanny B., Rockosi C., Newberg H.J., Knapp G.R., Adelman-McCarthy J.K.,
Alcorn B., Allam S., Prieto C.A., An D., Anderson K.S.J., Anderson S.,
Bailer-Jones C.A.L., Bastian S., Beers T.C., Bell E., Belokurov V.,
Bizyaev D., Blythe N., Bochanski J.J., Boroski W.N., Brinchmann J.,
Brinkmann J., Brewington H., Carey L., Cudworth K.M., Evans M., Evans N.W.,
Gates E., Gansicke B.T., Gillespie B., Gilmore G., Gomez-Moran A.N.,
Grebel E.K., Greenwell J., Gunn J.E., Jordan C., Jordan W., Harding P.,
Harris H., Hendry J.S., Holder D., Ivans I.I., Ivezic Z., Jester S.,
Johnson J.A., Kent S.M., Kleinman S., Kniazev A., Krzesinski J., Kron R.,
Kuropatkin N., Lebedeva S., Lee Y.S., Leger R.F., Lepine S., Levine S.,
Lin H., Long D.C., Loomis C., Lupton R., Malanushenko O., Malanushenko V.,
Margon B., Martinez-Delgado D., McGehee P., Monet D., Morrison H.L.,
Munn J.A., Neilsen E.H., Nitta A., Norris J.E., Oravetz D., Owen R.,
Padmanabhan N., Pan K., Peterson R.S., Pier J.R., Platson J.,
Re Fiorentin P., Richards G.T., Rix H.-W., Schlegel D.J., Schneider D.P.,
Schreiber M.R., Schwope A., Sibley V., Simmons A., Snedden S.A.,
Smith J.A., Stark L., Stauffer F., Steinmetz M., Stoughton C., Subbarao M.,
Szalay A., Szkody P., Thakar A.R., Thirupathi S., Tucker D., Uomoto A.,
Vanden Berk D., Vidrih S., Wadadekar Y., Watters S., Wilhelm R.,
Wyse R.F.G., Yarger J., Zucker D.
<Astron. J., 137, 4377-4399 (2009)>
=2009AJ....137.4377Y 2009AJ....137.4377Y
ADC_Keywords: Surveys ; Populations, stellar
Keywords: Galaxy: halo - Galaxy: stellar content - Galaxy: structure -
stars: abundances - stars: fundamental parameters - stars: general
Abstract:
The Sloan Extension for Galactic Understanding and Exploration (SEGUE)
Survey obtained ∼240000 moderate-resolution (R∼1800) spectra from
3900Å to 9000Å of fainter Milky Way stars (14.0<g<20.3) of
a wide variety of spectral types, both main-sequence and evolved
objects, with the goal of studying the kinematics and populations
of our Galaxy and its halo. The spectra are clustered in 212 regions
spaced over three quarters of the sky. Radial velocity accuracies for
stars are σ(RV)∼4km/s at g<18, degrading to σ(RV)∼15km/s
at g∼20. For stars with signal-to-noise ratio >10 per resolution
element, stellar atmospheric parameters are estimated, including
metallicity, surface gravity, and effective temperature. SEGUE
obtained 3500deg2 of additional ugriz imaging (primarily at low
Galactic latitudes) providing precise multicolor photometry
(σ(g,r,i) ∼2%), (σ(u,z)∼3%) and astrometry (∼0.1") for
spectroscopic target selection. The stellar spectra, imaging data, and
derived parameter catalogs for this survey are publicly available as
part of Sloan Digital Sky Survey Data Release 7.
Individual images of spectra in this data set may be examined by
fetching from the DAS, with a link like wget
http://das.sdss.org/spectro/1d_26/1880/gif/spPlot-53262-1880-014.gif
A FITS data file of the calibrated 1D spectrum is available from wget
http://das.sdss.org/spectro/1d_26/1880/1d/spSpec-53262-1880-014.fit
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table1.dat 54 17 *SEGUE imaging area stripes
table3.dat 85 218 List of SEGUE plate pairs
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Note on table1.dat: Each great-circle scan of the SDSS camera is designated
as a strip. Given the gaps between the CCDs in the camera, the 2.5°
wide region in the focal plane must be imaged with two scans to
completely cover the area. The filled 2.5deg region is called a stripe
(see Stoughton et al. 2002AJ....123..485S 2002AJ....123..485S).
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See also:
http://www.sdss.org/ : SDSS Home Page
Byte-by-byte Description of file: table1.dat
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Bytes Format Units Label Explanations
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1- 4 I4 --- Stripe Stripe number (1)
6- 8 I3 deg GLON ? Galactic longitude
10- 16 F7.3 deg Node Node
18- 24 F7.3 deg Incl Inclination (2)
26- 30 F5.1 deg mu0 Start µ (3)
32- 36 F5.1 deg mu1 End µ (3)
38- 42 F5.1 deg GLAT0 Start galactic latitude
44- 48 F5.1 deg GLAT1 End galactic latitude
50- 54 F5.1 deg2 Area Area
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Note (1): Stripes numbered below 1000 are part of the Legacy Survey, those
numbered above 1000 are special SEGUE stripes (as can be seen by the fixed
Galactic longitudes of the SEGUE stripes).
Note (2): Inclination of stripe relative to the celestial equator, node is at
alpha=95° for SDSS (non-SEGUE) stripes.
Note (3): mu is the analog of right ascension in the great-circle coordinate
system, nu is the analog of declination.
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Byte-by-byte Description of file: table3.dat
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Bytes Format Units Label Explanations
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1- 3 I3 --- PID Running plate pair design ID number
5- 8 I4 --- bplate ? Plate number of Bright plate
9 A1 --- f_bplate [*] plate taken in bright moon (1)
11- 14 I4 --- fplate ? Plate number of Faint plate
16- 20 I5 d bmjd ? Last Obs. MJD of Bright plate
22- 26 I5 d fmjd ? Last Obs. MJD of Faint plate
28- 31 I4 --- Stripe ? Legacy or SEGUE Stripe Number
33- 38 F6.2 deg RAdeg Right ascension of plate pair center (J2000)
40- 45 F6.2 deg DEdeg Declination of plate pair center (J2000)
47- 52 F6.2 deg GLON Galactic longitude of plate pair center
54- 59 F6.2 deg GLAT Galactic latitude of plate pair center
61- 64 F4.2 mag E(B-V) Average reddening colour excess of plate pair
66- 69 A4 --- Version Version of target selection for this plate pair
71- 85 A15 --- Type Type of survey (LL = low-latitude,
GD = Grillmair & Dionatos 2006ApJ...643L..17G 2006ApJ...643L..17G)
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Note (1):
* = Indicates plate obtained in bright moon, velocities off by up to 10km/s.
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History:
From electronic version of the journal
(End) Greg Schwarz [AAS], Patricia Vannier [CDS] 30-May-2011