The DECam Ecliptic Exploration Project (DEEP). VI. First Multiyear Observations of Trans-Neptunian Objects

Hayden Smotherman; Pedro H. Bernardinelli; Stephen K.N. Portillo; Andrew J. Connolly; J. Bryce Kalmbach; Steven Stetzler; Mario Jurić; Dino Bektešević; Zachary Langford; Fred C. Adams; William J. Oldroyd; Matthew J. Holman; Colin Orion Chandler; Cesar Fuentes; David W. Gerdes; Hsing Wen Lin; Larissa Markwardt; Andrew McNeill; Michael Mommert; Kevin J. Napier; Matthew J. Payne; Darin Ragozzine; Andrew S. Rivkin; Hilke Schlichting; Scott S. Sheppard; Ryder Strauss; David E. Trilling; Chadwick A. Trujillo

doi:10.3847/1538-3881/ad1524

The DECam Ecliptic Exploration Project (DEEP). VI. First Multiyear Observations of Trans-Neptunian Objects

Hayden Smotherman, Pedro H. Bernardinelli, Stephen K.N. Portillo, Andrew J. Connolly, J. Bryce Kalmbach, Steven Stetzler, Mario Jurić, Dino Bektešević, Zachary Langford, Fred C. Adams, William J. Oldroyd, Matthew J. Holman, Colin Orion Chandler, Cesar Fuentes, David W. Gerdes, Hsing Wen Lin, Larissa Markwardt, Andrew McNeill, Michael Mommert, Kevin J. NapierMatthew J. Payne, Darin Ragozzine, Andrew S. Rivkin, Hilke Schlichting, Scott S. Sheppard, Ryder Strauss, David E. Trilling, Chadwick A. Trujillo

Astronomy and Planetary Sciences

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

3 Scopus citations

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 m _VR ≈ 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 76 au (semimajor axis a ≈ 77 au). We find a disagreement between our population of classical TNOs and the CFEPS-L7 three-component model for the Kuiper Belt.

Original language	English (US)
Article number	136
Journal	Astronomical Journal
Volume	167
Issue number	3
DOIs	https://doi.org/10.3847/1538-3881/ad1524
State	Published - Mar 1 2024

ASJC Scopus subject areas

Astronomy and Astrophysics
Space and Planetary Science

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10.3847/1538-3881/ad1524

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Smotherman, H., Bernardinelli, P. H., Portillo, S. K. N., Connolly, A. J., Kalmbach, J. B., Stetzler, S., Jurić, M., Bektešević, 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., ... Trujillo, C. A. (2024). The DECam Ecliptic Exploration Project (DEEP). VI. First Multiyear Observations of Trans-Neptunian Objects. Astronomical Journal, 167(3), Article 136. https://doi.org/10.3847/1538-3881/ad1524

Smotherman, H, Bernardinelli, PH, Portillo, SKN, Connolly, AJ, Kalmbach, JB, Stetzler, S, Jurić, M, Bektešević, D, Langford, Z, Adams, FC, Oldroyd, WJ, Holman, MJ, Chandler, CO, Fuentes, C, Gerdes, DW, Lin, HW, Markwardt, L, McNeill, A, Mommert, M, Napier, KJ, Payne, MJ, Ragozzine, D, Rivkin, AS, Schlichting, H, Sheppard, SS, Strauss, R, Trilling, DE & Trujillo, CA 2024, 'The DECam Ecliptic Exploration Project (DEEP). VI. First Multiyear Observations of Trans-Neptunian Objects', Astronomical Journal, vol. 167, no. 3, 136. https://doi.org/10.3847/1538-3881/ad1524

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title = "The DECam Ecliptic Exploration Project (DEEP). VI. First Multiyear Observations of 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 m VR ≈ 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 76 au (semimajor axis a ≈ 77 au). We find a disagreement between our population of classical TNOs and the CFEPS-L7 three-component model for the Kuiper Belt.",

author = "Hayden Smotherman and Bernardinelli, {Pedro H.} and Portillo, {Stephen K.N.} and Connolly, {Andrew J.} and Kalmbach, {J. Bryce} and Steven Stetzler and Mario Juri{\'c} and Dino Bekte{\v s}evi{\'c} and Zachary Langford and Adams, {Fred C.} and Oldroyd, {William J.} and Holman, {Matthew J.} and Chandler, {Colin Orion} and Cesar Fuentes and Gerdes, {David W.} and Lin, {Hsing Wen} and Larissa Markwardt and Andrew McNeill and Michael Mommert and Napier, {Kevin J.} and Payne, {Matthew J.} and Darin Ragozzine and Rivkin, {Andrew S.} and Hilke Schlichting and Sheppard, {Scott S.} and Ryder Strauss and Trilling, {David E.} and Trujillo, {Chadwick A.}",

note = "Publisher Copyright: {\textcopyright} 2024. The Author(s). Published by the American Astronomical Society.",

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doi = "10.3847/1538-3881/ad1524",

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AU - Smotherman, Hayden

AU - Bernardinelli, Pedro H.

AU - Portillo, Stephen K.N.

AU - Connolly, Andrew J.

AU - Kalmbach, J. Bryce

AU - Stetzler, Steven

AU - Jurić, Mario

AU - Bektešević, Dino

AU - Langford, Zachary

AU - Adams, Fred C.

AU - Oldroyd, William J.

AU - Holman, Matthew J.

AU - Chandler, Colin Orion

AU - Fuentes, Cesar

AU - Gerdes, David W.

AU - Lin, Hsing Wen

AU - Markwardt, Larissa

AU - McNeill, Andrew

AU - Mommert, Michael

AU - Napier, Kevin J.

AU - Payne, Matthew J.

AU - Ragozzine, Darin

AU - Rivkin, Andrew S.

AU - Schlichting, Hilke

AU - Sheppard, Scott S.

AU - Strauss, Ryder

AU - Trilling, David E.

AU - Trujillo, Chadwick A.

PY - 2024/3/1

Y1 - 2024/3/1

N2 - 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 m VR ≈ 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 76 au (semimajor axis a ≈ 77 au). We find a disagreement between our population of classical TNOs and the CFEPS-L7 three-component model for the Kuiper Belt.

AB - 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 m VR ≈ 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 76 au (semimajor axis a ≈ 77 au). We find a disagreement between our population of classical TNOs and the CFEPS-L7 three-component model for the Kuiper Belt.

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SN - 0004-6256

VL - 167

JO - Astronomical Journal

JF - Astronomical Journal

IS - 3

M1 - 136

ER -

The DECam Ecliptic Exploration Project (DEEP). VI. First Multiyear Observations of Trans-Neptunian Objects

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