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J/ApJ/720/1691     Observations of the distant Kuiper belt      (Schwamb+, 2010)

Properties of the distant Kuiper belt: results from the Palomar distant solar system survey. Schwamb M.E., Brown M.E., Rabinowitz D.L., Ragozzine D. <Astrophys. J., 720, 1691-1707 (2010)> =2010ApJ...720.1691S
ADC_Keywords: Solar system ; Minor planets ; Magnitudes ; Surveys Keywords: Kuiper Belt: general - Oort Cloud Abstract: We present the results of a wide-field survey using the 1.2m Samuel Oschin Telescope at Palomar Observatory. This survey was designed to find the most distant members of the Kuiper Belt and beyond. We searched ∼12000deg2 down to a mean limiting magnitude of 21.3 in R. A total number of 52 Kuiper Belt objects and Centaurs have been detected, 25 of which were discovered in this survey. Except for the redetection of Sedna, no additional Sedna-like bodies with perihelia greater than 45AU were detected despite sensitivity out to distances of 1000AU. We discuss the implications for a distant Sedna-like population beyond the Kuiper Belt, focusing on the constraints we can place on the embedded stellar cluster environment the early Sun may be have been born in, where the location and distribution of Sedna-like orbits sculpted by multiple stellar encounters is indicative of the birth cluster size. We also report our observed latitude distribution and implications for the size of the plutino population. Description: Observations were taken nightly using the robotic 1.2m Samuel Oschin Telescope located at Palomar Observatory and the QUEST large-area CCD camera. Observations were taken from 2007 May 8-2008 September 27. We have surveyed in total 11786deg2 within ±30° of the ecliptic to a mean depth of R magnitude 21.3. All exposures were taken through the broadband red RG610 filter (IIIaF filter from the POSS-II survey) with a wavelength range of λ=610-690nm. File Summary:
FileName Lrecl Records Explanations
ReadMe 80 . This file table1.dat 81 2319 Summary of field positions table2.dat 69 52 Orbital information for objects detected in the survey
See also: B/astorb : Orbits of Minor Planets (Bowell+ 2012) J/AJ/135/55 : NIR spectra of Centaurs and KBOs (Barkume+, 2008) J/A+A/380/347 : BVRI photometry of 27 Kuiper Belt Objects (Delsanti+, 2001) Byte-by-byte Description of file: table1.dat
Bytes Format Units Label Explanations
1- 5 I5 --- Point [1/2319] Pointing number 7- 8 I2 h RAh Mosaic center Hour of Right Ascension (J2000) 10- 11 I2 min RAm Mosaic center Minute of Right Ascension (J2000) 13- 18 F6.3 s RAs Mosaic center Second of Right Ascension (J2000) 20 A1 --- DE- Sign of the Mosaic center Declination (J2000) 21- 22 I2 deg DEd Mosaic center Degree of Declination (J2000) 24- 25 I2 arcmin DEm Mosaic center Arcminute of Declination (J2000) 27- 31 F5.2 arcsec DEs Mosaic center Arcsecond of Declination (J2000) 33- 41 F9.3 d MJDN1O1 Modified Julian Date of 1st night 1 observation 43- 51 F9.3 d MJDN1O2 Modified Julian Date of 2nd night 1 observation 53- 56 F4.1 mag magN1 Magnitude limit from night 1 observation 58- 66 F9.3 d MJDN2O1 Modified Julian Date of 1st night 2 observation 68- 76 F9.3 d MJDN2O2 Modified Julian Date of 2nd night 2 observation 78- 81 F4.1 mag magN2 Magnitude limit from night 2 observation
Byte-by-byte Description of file: table2.dat
Bytes Format Units Label Explanations
1- 6 I6 --- Planet [19521/229762]? Planet number 8- 17 A10 --- ID Designation (YYYY AANNN) (1) 19- 24 F6.2 AU amaj Orbit semimajor axis (2) 26- 30 F5.3 --- e Orbit eccentricity (2) 32- 35 F4.1 deg i Orbit inclination (2) 37- 41 F5.2 AU R Barycentric distance (R) (2) 43- 44 I2 yr Opp [1/16] Oppositions observed (in years except where days noted by d) (2) 45 A1 --- f_Opp [d] d: day unit for Opp 47- 50 F4.1 mag <m1> Average magnitude during night 1 (2) 52- 55 F4.1 mag <m2> Average magnitude during night 2 (2) 57- 59 F3.1 mag HMag Absolute magnitude (H) (2) 61- 69 A9 --- MMR Mean motion resonance (MMR) if applicable (2)
Note (1): All 2007 and 2008 classified objects were new discoveries found by this work. Note (2): Orbital elements reported by the Minor Planet Center of Centaurs and KBOs detected in the Palomar survey.
History: From electronic version of the journal
(End) Greg Schwarz [AAS], Emmanuelle Perret [CDS] 04-Jul-2012
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