Zobrazeno 1 - 10
of 1 234
pro vyhledávání: '"S, Sheppard"'
Autor:
Luise Franke, Christine S. Sheppard, Marco R. Brendel, Carsten M. Buchmann, Viktoria Ferenc, Jinlei Zhu, Frank M. Schurr
Publikováno v:
Basic and Applied Ecology, Vol 81, Iss , Pp 75-84 (2024)
Strategies to counteract the loss of arable plant diversity often target field margins. Yet there is still need for research on how arable plant diversity is impacted by the type, scale and diversity of margin management. To assess this experimentall
Externí odkaz:
https://doaj.org/article/ba2f90b50b8e41618b2de7d6522ba60e
Autor:
Christine S. Sheppard, Nora Lüpke
Publikováno v:
Basic and Applied Ecology, Vol 77, Iss , Pp 16-25 (2024)
Biological invasions are a major threat to biodiversity because of invasive alien species’ high population growth rates and spread in new ranges. The inherent superiority hypothesis states that particular characteristics of alien species cause them
Externí odkaz:
https://doaj.org/article/4d32f3eeb5624156b4806c67e42e3a62
Publikováno v:
Ecology and Evolution, Vol 13, Iss 9, Pp n/a-n/a (2023)
Abstract Alien plants experience novel abiotic conditions and interactions with native communities in the introduced area. Intra‐ and interspecific selection on functional traits in the new environment may lead to increased population growth with t
Externí odkaz:
https://doaj.org/article/98aa64ad10c94229a23d51a70d9e52e1
Autor:
Scott S. Sheppard, David J. Tholen, Marina Brozovic, Robert Jacobson, Chadwick A. Trujillo, Patryk Sofia Lykawka, Mike Alexandersen
Publikováno v:
The Astronomical Journal, Vol 168, Iss 6, p 258 (2024)
We have conducted extremely ultradeep pencil-beam observations for new satellites around both Uranus and Neptune. Tens of images on several different nights in 2021, 2022, and 2023 were obtained, shifted, and added together to reach as faint as 26.9
Externí odkaz:
https://doaj.org/article/fa9a5158a8a74018b170c4989a730945
Autor:
Ryder Strauss, Andrew McNeill, David E. Trilling, Francisco Valdes, Pedro H. Bernardinelli, Cesar Fuentes, David W. Gerdes, Matthew J. Holman, Mario Jurić, Hsing Wen Lin, Larissa Markwardt, Michael Mommert, Kevin J. Napier, William J. Oldroyd, Matthew J. Payne, Andrew S. Rivkin, Hilke E. Schlichting, Scott S. Sheppard, Hayden Smotherman, Chadwick A. Trujillo, Fred C. Adams, Colin Orion Chandler
Publikováno v:
The Astronomical Journal, Vol 168, Iss 4, p 184 (2024)
Superfast rotators (SFRs) are small solar system objects that rotate faster than generally possible for a cohesionless rubble pile. Their rotational characteristics allow us to make inferences about their interior structure and composition. Here, we
Externí odkaz:
https://doaj.org/article/50ed3410d7b046eba07603744a9456cf
Autor:
Marc W. Buie, John R. Spencer, Simon B. Porter, Susan D. Benecchi, Alex H. Parker, S. Alan Stern, Michael Belton, Richard P. Binzel, David Borncamp, Francesca DeMeo, S. Fabbro, Cesar Fuentes, Hisanori Furusawa, Tetsuharu Fuse, Pamela L. Gay, Stephen Gwyn, Matthew J. Holman, H. Karoji, J. J. Kavelaars, Daisuke Kinoshita, Satoshi Miyazaki, Matt Mountain, Keith S. Noll, David J. Osip, Jean-Marc Petit, Neill I. Reid, Scott S. Sheppard, Mark Showalter, Andrew J. Steffl, Ray E. Sterner, Akito Tajitsu, David J. Tholen, David E. Trilling, Harold A. Weaver, Anne J. Verbiscer, Lawrence H. Wasserman, Takuji Yamashita, Toshifumi Yanagisawa, Fumi Yoshida, Amanda M. Zangari
Publikováno v:
The Planetary Science Journal, Vol 5, Iss 9, p 196 (2024)
Following the Pluto flyby of the New Horizons spacecraft, the mission provided a unique opportunity to explore the Kuiper Belt in situ. The possibility existed to fly by a Kuiper Belt object (KBO), as well as to observe additional objects at distance
Externí odkaz:
https://doaj.org/article/4c56f16305c143e2881803d2a546dfd8
Autor:
Audrey Thirouin, Scott S. Sheppard
Publikováno v:
The Planetary Science Journal, Vol 5, Iss 4, p 84 (2024)
The 5:3 and 7:4 mean motion resonances of Neptune are at 42.3 and 43.7 au, respectively, and overlap with objects in the classical trans-Neptunian belt (Kuiper Belt). We report the complete/partial lightcurves of 13 and 14 trans-Neptunian objects (TN
Externí odkaz:
https://doaj.org/article/5405f8ac34134ff9b6c162fe3247ab2d
Autor:
Colin Orion Chandler, Chadwick A. Trujillo, William J. Oldroyd, Jay K. Kueny, William A. Burris, Henry H. Hsieh, Jarod A. DeSpain, Nima Sedaghat, Scott S. Sheppard, Kennedy A. Farrell, David E. Trilling, Annika Gustafsson, Mark Jesus Mendoza Magbanua, Michele T. Mazzucato, Milton K. D. Bosch, Tiffany Shaw-Diaz, Virgilio Gonano, Al Lamperti, José A. da Silva Campos, Brian L. Goodwin, Ivan A. Terentev, Charles J. A. Dukes, Sam Deen
Publikováno v:
The Astronomical Journal, Vol 167, Iss 4, p 156 (2024)
We present the Citizen Science program Active Asteroids and describe discoveries stemming from our ongoing project. Our NASA Partner program is hosted on the Zooniverse online platform and launched on 2021 August 31, with the goal of engaging the com
Externí odkaz:
https://doaj.org/article/8ccaf1071a63427ea2ae7e43285e7876
Autor:
David E. Trilling, David W. Gerdes, Mario Jurić, Chadwick A. Trujillo, Pedro H. Bernardinelli, Kevin J. Napier, Hayden Smotherman, Ryder Strauss, Cesar Fuentes, Matthew J. Holman, Hsing Wen Lin, Larissa Markwardt, Andrew McNeill, Michael Mommert, William J. Oldroyd, Matthew J. Payne, Darin Ragozzine, Andrew S. Rivkin, Hilke Schlichting, Scott S. Sheppard, Fred C. Adams, Colin Orion Chandler
Publikováno v:
The Astronomical Journal, Vol 167, Iss 3, p 132 (2024)
We present here the DECam Ecliptic Exploration Project (DEEP), a 3 yr NOAO/NOIRLab Survey that was allocated 46.5 nights to discover and measure the properties of thousands of trans-Neptunian objects (TNOs) to magnitudes as faint as VR ∼ 27 mag, co
Externí odkaz:
https://doaj.org/article/d2d09c56046247f6b52cde275449dc10
Autor:
Ryder Strauss, David E. Trilling, Pedro H. Bernardinelli, Christiano Beach, William J. Oldroyd, Scott S. Sheppard, Hilke E. Schlichting, David W. Gerdes, Cesar Fuentes, Matthew J. Holman, Mario Jurić, Hsing Wen Lin, Larissa Markwardt, Andrew McNeill, Michael Mommert, Kevin J. Napier, Matthew J. Payne, Darin Ragozzine, Andrew S. Rivkin, Hayden Smotherman, Chadwick A. Trujillo, Fred C. Adams, Colin Orion Chandler
Publikováno v:
The Astronomical Journal, Vol 167, Iss 3, p 135 (2024)
We present the methods and results from the discovery and photometric measurement of 26 bright VR > 24 trans-Neptunian objects (TNOs) during the first year (2019–20) of the DECam Ecliptic Exploration Project (DEEP). The DEEP survey is an observatio
Externí odkaz:
https://doaj.org/article/8c82670f19944ccda3acf86b95181822