J/AJ/167/136 DEEP. VI. 110 Trans-Neptunian Objects (Smotherman+, 2024)
The DECam Ecliptic Exploration Project (DEEP).
VI. Observations of Trans-Neptunian Objects
Smotherman H, Bernardinelli P.H, Portillo S.K.N, Connolly A.J,
Kalmbach J.B, Stetzler S, Juric M, Bektesevic D, Langford Z, Adams F.C,
Oldroyd W.J, Holman M.J, Chandler C.O, Fuentes C, Gerdes D.W, Lin H.W,
Markwardt L, Mcneill A, Mommert M, Napier K.J, Payne M.J, Ragozzine D,
Rivkin A.S, Schlichting H, Sheppard S.S, Strauss R, Trilling D.E,
Trujillo C.A
<Astron. J., 167, 136 (2024)>
=2024AJ....167..136S 2024AJ....167..136S
ADC_Keywords: Solar system; Minor planets; Positional data
Keywords: Kuiper Belt; Surveys; Trans-Neptunian objects
Abstract:
We present the first set of trans-Neptunian objects (TNOs) observed on
multiple nights in data taken from the DECam Ecliptic Exploration
Project. Of these 110 TNOs, 105 do not coincide with previously known
TNOs and appear to be new discoveries. Each individual detection for
our objects resulted from a digital tracking search at TNO rates of
motion, using two-to-four-hour exposure sets, and the detections were
subsequently linked across multiple observing seasons. This procedure
allows us to find objects with magnitudes mVR∼26. The object discovery
processing also included a comprehensive population of objects
injected into the images, with a recovery and linking rate of at least
94%. The final orbits were obtained using a specialized orbit-fitting
procedure that accounts for the positional errors derived from the
digital tracking procedure. Our results include robust orbits and
magnitudes for classical TNOs with absolute magnitudes H∼10, as well
as a dynamically detached object found at 76au (semimajor axis
a∼77au). We find a disagreement between our population of classical
TNOs and the CFEPS-L7 three-component model for the Kuiper Belt.
Description:
As its acronym indicates, DEEP uses the Dark Energy Camera (DECam) on
the 4m Blanco telescope at the Cerro Tololo Inter-American Observatory
(CTIO). The data are taken in the VR band.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table2.dat 200 110 *Orbital properties of the TNOs from DEEP B1
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Note on table2.dat: All elements correspond to Julian epoch
2019-08-30, and are barycentric and ecliptic-aligned.
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See also:
J/A+A/468/L13 : Photometry of the trans-Neptunian object 2005FY9 (Ortiz+, 2007)
J/A+A/508/451 : Light curves of 5 Trans-Neptunian Objects (Perna+, 2009)
J/ApJ/743/1 : Astrometry of 7 wide trans-Neptunian binaries (Parker+, 2011)
J/AJ/152/80 : Astrometry of Pluto and trans-Neptunian objects (Holman+, 2016)
J/AJ/152/111 : 2011-2013 survey trans-Neptunian objects (Alexandersen+, 2016)
J/AJ/152/221 : New extreme trans-Neptunian objects (Sheppard+, 2016)
J/ApJS/267/33 : FOSSIL. III. LCs of Trans-Neptunian Objects (Ashton+, 2023)
Byte-by-byte Description of file: table2.dat
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Bytes Format Units Label Explanations
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1- 10 F10.7 au a [37.7/90.1] Semi-major axis
12- 20 F9.7 --- e [0.005/0.59] Eccentricity
22- 31 F10.7 deg i [0.34/33.1] Inclination
33- 43 F11.7 deg aop [0/360] Argument of perihelion
45- 55 F11.7 deg lan [1/360] Longitude of ascending node
57- 68 F12.7 yr Tp [1869/2161] Time of perihelion passage,
Julian years
70- 78 F9.7 au e_a Uncertainty in a
80- 88 A9 --- e_e Uncertainty in e
90- 98 A9 deg e_i Uncertainty in i
100-108 A9 deg e_lan Uncertainty in lan
110-119 F10.7 deg e_aop Uncertainty in aop
121-130 F10.7 yr e_Tp Uncertainty in Tp
132-141 F10.7 mag VRmag [22.3/26.1] Mean magnitude
143-152 F10.7 mag VRMAG [6.05/10.1] Phase-corrected absolute magnitude
154-162 F9.7 mag e_VRmag [0.003/0.2] Uncertainty in mVRmag, HVRmag
164-175 A12 --- Class Dynamical classification
177-181 A5 --- Secure Is the dynamical classification secure?
183-189 A7 --- DEEP DEEP sequential identifier
191-200 A10 --- MPC Minor Planet Center object designation
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History:
From electronic version of the journal
References:
Trilling et al. Paper I : 2024AJ....167..132T 2024AJ....167..132T
Trujillo et al. Paper II : 2024AJ....167..133T 2024AJ....167..133T
Bernardinelli et al. Paper III : 2024AJ....167..134B 2024AJ....167..134B
Strauss et al. Paper IV : 2024AJ....167..135S 2024AJ....167..135S
(End) Prepared by [AAS], Coralie Fix [CDS], 17-May-2024