J/ApJS/258/41 TNOs from the full six years of DES (Bernardinelli+, 2022)
A search of the full six years of the Dark Energy Survey for outer solar system
objects.
Bernardinelli P.H., Bernstein G.M., Sako M., Yanny B., Aguena M., Allam S.,
Andrade-Oliveira F., Bertin E., Brooks D., Buckley-Geer E., Burke D.L.,
Rosell A.C., Carrasco Kind M., Carretero J., Conselice C., Costanzi M.,
da Costa L.N., De Vicente J., Desai S., Diehl H.T., Dietrich J.P., Doel P.,
Eckert K., Everett S., Ferrero I., Flaugher B., Fosalba P., Frieman J.,
Garcia-Bellido J., Gerdes D.W., Gruen D., Gruendl R.A., Gschwend J.,
Hinton S.R., Hollowood D.L., Honscheid K., James D.J., Kent S., Kuehn K.,
Kuropatkin N., Lahav O., Maia M.A.G., March M., Menanteau F., Miquel R.,
Morgan R., Myles J., Ogando R.L.C., Palmese A., Paz-Chinchon F., Pieres A.,
Plazas Malagon A.A., Romer A.K., Roodman A., Sanchez E., Scarpine V.,
Schubnell M., Serrano S., Sevilla-Noarbe I., Smith M., Soares-Santos M.,
Suchyta E., Swanson M.E.C., Tarle G., To C., Varga T.N., Walker A.R.,
The DES Collaboration
<Astrophys. J. Suppl. Ser., 258, 41 (2022)>
=2022ApJS..258...41B 2022ApJS..258...41B
ADC_Keywords: Comets; Solar system; Minor planets; Photometry, RI;
Magnitudes, absolute
Keywords: Small Solar System bodies ; Trans-Neptunian objects ; Comets ;
Astronomy data analysis ; Kuiper belt
Abstract:
We present a search for outer solar system objects in the 6yr of data
from the Dark Energy Survey (DES). The DES covered a contiguous
5000deg2 of the southern sky with ∼80000 3deg2 exposures in the
grizY filters between 2013 and 2019. This search yielded
812 trans-Neptunian objects (TNOs), one Centaur and one Oort cloud
comet, 458 reported here for the first time. We present methodology
that builds upon our previous search on the first 4yr of data. All
images were reprocessed with an optimized detection pipeline that
leads to an average completeness gain of 0.47mag per exposure, as
well as improved transient catalog production and algorithms for
linkage of detections into orbits. All objects were verified by visual
inspection and by the "sub-threshold significance", the
signal-to-noise ratio in the stack of images in which its presence is
indicated by the orbit, but no detection was reported. This yields a
pure catalog complete to r∼23.8mag and distances 29<d<2500au. The TNOs
have minimum (median) of 7 (12) nights' detections and arcs of
1.1 (4.2) yr, and will have grizY magnitudes available in a further
publication. We present software for simulating our observational
biases for comparisons of models to our detections. Initial inferences
demonstrating the catalog's statistical power are: the data are
inconsistent with the CFEPS-L7 model for the classical Kuiper Belt;
the 16 "extreme" TNOs (a>150au, q>30au) are consistent with the null
hypothesis of azimuthal isotropy; and nonresonant TNOs with q>38au,
a>50au show a significant tendency to be sunward of major mean-motion
resonances.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
catalog.dat 611 814 *DES Trans-Neptunian Objects (TNOs)
for the Y6 release
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Note on catalog.dat: All of the elements reported are barycentric and refer to
epoch 2016.0, and their uncertainties correspond to the 1σ
uncertainty marginalized over other orbital parameters.
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See also:
I/345 : Gaia DR2 (Gaia Collaboration, 2018)
II/371 : The Dark Energy Survey (DES): Data Release 2 (Abott+, 2021)
J/ApJ/720/1691 : Observations of the distant Kuiper belt (Schwamb+, 2010)
J/AJ/152/70 : Outer Solar Syst. Origins Survey (OSSOS) I. (Bannister+, 2016)
J/ApJS/236/18 : OSSOS. VII. TNOs complete data release (Bannister+, 2018)
J/ApJS/244/19 : OSSOS. XII. Subaru/HSC obs. of 65 TNOs (Alexandersen+, 2019)
J/AJ/157/120 : TNOs & Centaurs observed within the DES (Banda-Huarca+, 2019)
J/AJ/157/139 : Inner Oort cloud survey obs.: 2015 TG387 (Sheppard+, 2019)
J/AJ/159/133 : Orbital elements of TNOs from the DES (Khain+, 2020)
Byte-by-byte Description of file: catalog.dat
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Bytes Format Units Label Explanations
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1- 12 A12 --- MPC Minor Planet Center object designation
14- 24 F11.5 AU a [26/18866] Semimajor axis of the best-fit orbit
26- 34 F9.5 AU e_a [0.00016/353] Uncertainty in a (sigma_a)
36- 44 F9.7 --- e [0.006/1] Eccentricity
46- 54 F9.7 --- e_e [3.7e-6/0.005] Uncertainty in e (sigma_e)
56- 65 F10.7 deg i [0.18/96] Inclination
67- 75 F9.7 deg e_i [7e-7/0.0018] Uncertainty in i (sigma_i)
77- 85 F9.5 deg omega [0.2/360] Argument of perihelion (aop)
87- 93 F7.5 deg e_omega [0.00018/4] Uncertainty in ω (sigma_aop)
95- 104 F10.6 deg Omega [0.16/360] Longitude of ascending node (lan)
106- 113 F8.6 deg e_Omega [5e-6/0.06] Uncertainty in Ω (sigma_lan)
115- 126 F12.5 d Tp [2420/145671] Time of perihelion passage
(UTC Modified Julian Date) (T_p)
128- 137 F10.5 d e_Tp [0.029/834] Uncertainty in Tp (sigma_T)
139- 146 F8.5 AU q [10.9/55] Perihelion distance
148- 154 F7.5 AU e_q [0.0001/0.6] Uncertainty in q (sigma_q)
156- 164 F9.6 AU d [27.5/97] Discovery distance, geocentric
166- 173 F8.6 AU e_d [1.4e-5/0.009] Uncertainty in d (sigma_d)
175- 183 F9.6 AU delta [27.4/96.3] Discovery distance, heliocentric
185- 192 F8.6 AU e_delta [1e-5/0.009] Uncertainty in Δ
(sigma_delta)
194- 201 F8.5 mg rmag [18.6/25.4] Mean r-band magnitude (m_r)
203- 209 F7.5 mg e_rmag [0.0007/0.4] Uncertainty in rmag (sigmamr)
211- 219 F9.5 mg rMag [-1.3/9.8] Absolute magnitude in band r (H_r)
221- 227 F7.5 mg e_rMag [0.0007/0.4] Uncertainty in rMag (sigmaHr)
229- 230 I2 --- Nuni [7/29] Number of unique nights of detections
(NUNIQUE)
232- 233 I2 --- Ndet [7/42] Number of detections (NDETECT)
235- 242 F8.5 --- Chi2 [4.8/96] x extsuperscript2 of the orbit fit,
where v=2xNdet-6
244- 252 F9.6 AU x [-1.7/87] ICRS-oriented X position
254- 263 F10.6 AU y ICRS-oriented Y position
265- 274 F10.6 AU z ICRS-oriented Z position
276- 284 F9.6 AU/yr Vx [-1.7/1.6] ICRS-oriented X velocity
286- 294 F9.6 AU/yr Vy ICRS-oriented Y velocity
296- 304 F9.6 AU/yr Vz ICRS-oriented Z velocity
306- 316 E11.6 --- Sigxx [1.4e-10/7.3e-5] x,x element of the state
vector covariance matrix (Sigmaxx)
318- 329 E12.6 --- Sigxy x,y element of the state vector covariance
matrix (Sigmaxy)
331- 342 E12.6 --- Sigxz x,z element of the state vector covariance
matrix (Sigmaxz)
344- 355 E12.6 --- SigxVx [-3.2e-5/3.6e-5] x,Vx element of the state
vector covariance matrix (Sigmaxvx)
357- 368 E12.6 --- SigxVy x,Vy element of the state vector covariance
matrix (Sigmaxvy)
370- 381 E12.6 --- SigxVz x,Vz element of the state vector covariance
matrix (Sigmaxvz)
383- 393 E11.6 --- Sigyy y,y element of the state vector covariance
matrix (Sigmayy)
395- 406 E12.6 --- Sigyz y,z element of the state vector covariance
matrix (Sigmayz)
408- 419 E12.6 --- SigyVx y,Vx element of the state vector covariance
matrix (Sigmayvx)
421- 432 E12.6 --- SigyVy y,Vy element of the state vector covariance
matrix (Sigmayvy)
434- 445 E12.6 --- SigyVz y,Vz element of the state vector covariance
matrix (Sigmayvz)
447- 457 E11.6 --- Sigzz z,z element of the state vector covariance
matrix (Sigmazz)
459- 470 E12.6 --- SigzVx z,Vx element of the state vector covariance
matrix (Sigmazvx)
472- 483 E12.6 --- SigzVy z,Vy element of the state vector covariance
matrix (Sigmazvy)
485- 496 E12.6 --- SigzVz z,Vz element of the state vector covariance
matrix (Sigmazvz)
498- 508 E11.6 --- SigVxVx [1e-11/2.1e-5] Vx,Vx element of the state
vector covariance matrix (Sigmavxvx)
510- 521 E12.6 --- SigVxVy Vx,Vy element of the state vector covariance
matrix (Sigmavxvy)
523- 534 E12.6 --- SigVxVz Vx,Vz element of the state vector covariance
matrix (Sigmavxvz)
536- 546 E11.6 --- SigVyVy Vy,Vy element of the state vector covariance
matrix (Sigmavyvy)
548- 559 E12.6 --- SigVyVz Vy,Vz element of the state vector covariance
matrix (Sigmavyvz)
561- 571 E11.6 --- SigVzVz Vz,vz element of the state vector covariance
matrix (Sigmavzvz)
573- 596 A24 --- Class Dynamical classification
598- 611 A14 --- Notes Notes on the object (1)
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Note (1): Insecure dynamical classifications include "ins" in this column,
noncharacterized objects have "nc", and resonant objects also have their
{p, q, m, n, r, s} resonant arguments listed.
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History:
From electronic version of the journal
References:
Bernardinelli et al. Paper I. 2020PSJ.....1...28B 2020PSJ.....1...28B
(End) Emmanuelle Perret [CDS] 18-May-2022