Results 11 to 20 of about 8,152 (171)

Simultaneous Sizing of a Rocket Family with Embedded Trajectory Optimization [PDF]

Journal of Spacecraft and Rockets, 2023
This paper presents a sizing procedure for a rocket family capable of fulfilling multiple missions, considering the commonalities between the vehicles.
Byeong-Un Jo, K. Ho
semanticscholar   +1 more source

Commodity risk assessment of Taxus baccata plants from the UK. [PDF]

EFSA J
Abstract The European Commission requested the EFSA Panel on Plant Health to prepare and deliver risk assessments for commodities listed in Commission Implementing Regulation (EU) 2018/2019 as ‘High risk plants, plant products and other objects’. This Scientific Opinion covers plant health risks posed by plants of Taxus baccata imported from the United
EFSA Panel on Plant Health (PLH), Civera AV, Baptista P, Berlin A, Chatzivassiliou E, Cubero J, Cunniffe N, de la Peña E, Desneux N, Di Serio F, Filipiak A, Hasiów-Jaroszewska B, Jactel H, Landa B, Maistrello L, Makowski D, Milonas P, Papadopoulos N, Potting R, Susi H, van Der Gaag DJ, Battisti A, Bragard C, Sven Magnusson C, Mas H, Rigling D, Faccoli M, Mikulová A, Stergulc F, Mosbach-Schulz O, Streissl F, Gonthier P.   +31 more
europepmc   +2 more sources

Commodity risk assessment of <i>Populus alba</i>, <i>Populus nigra</i> and <i>Populus tremula</i> plants from the UK. [PDF]

EFSA J
Abstract The European Commission requested the EFSA Panel on Plant Health to prepare and deliver risk assessments for commodities listed in Commission Implementing Regulation (EU) 2018/2019 as ‘High risk plants, plant products and other objects’. This Scientific Opinion covers plant health risks posed by plants of Populus alba, Populus nigra and ...
EFSA Panel on Plant Health (PLH), Vicent Civera A, Baptista P, Berlin A, Chatzivassiliou E, Cubero J, Cunniffe N, de la Peña E, Desneux N, Di Serio F, Filipiak A, Hasiów-Jaroszewska B, Jactel H, Landa BB, Maistrello L, Makowski D, Milonas P, Papadopoulos N, Potting R, Susi H, van Der Gaag DJ, Battisti A, Bragard C, Magnusson CS, Mas H, Rigling D, Faccoli M, Mikulová A, Stergulc F, Christoph E, Mosbach-Schulz O, Streissl F, Gonthier P.   +32 more
europepmc   +2 more sources

Semimajor-axis Jumps as the Activity Trigger in Centaurs and High-perihelion Jupiter-family Comets [PDF]

Astrophysical Journal Letters, 2023
We present a dynamical study of 39 active Centaurs and 17 high-perihelion (q > 4.5 au) Jupiter-family comets (JFCs) with a focus on investigating recent orbital changes as potential triggers for comet-like activity. We have identified a common feature in
E. Lilly, Peter Jevčák, C. Schambeau, Kat Volk, J. Steckloff, Henry H. Hsieh, Yanga R. Fernández, J. Bauer, R. Weryk, R. Wainscoat   +9 more
semanticscholar   +1 more source

Thermal Processing of Jupiter-family Comets during Their Chaotic Orbital Evolution [PDF]

Astrophysical Journal, 2022
Evidence for cometary activity beyond Jupiter’s and Saturn’s orbits—such as that observed for Centaurs and long-period comets—suggests that the thermal processing of comet nuclei starts long before they enter the inner solar system, where they are ...
Anastasios Gkotsinas, A. Guilbert-Lepoutre, S. Raymond, D. Nesvorný   +3 more
semanticscholar   +1 more source

The Gateway from Centaurs to Jupiter-family Comets: Thermal and Dynamical Evolution [PDF]

Astrophysical Journal, 2022
It was recently proposed that there exists a “gateway” in the orbital parameter space through which Centaurs transition to Jupiter-family comets (JFCs).
A. Guilbert-Lepoutre, Anastasios Gkotsinas, S. Raymond, D. Nesvorný   +3 more
semanticscholar   +1 more source

Photometric Confirmation and Characterization of the Ennomos Collisional Family in the Jupiter Trojans [PDF]

Astronomical Journal, 2022
Collisional families offer a unique window into the interior composition of asteroid populations. Previous dynamical studies of the Jupiter Trojans have uncovered a handful of potential collisional families, two of which have been subsequently confirmed ...
I. Wong, M. Brown
semanticscholar   +1 more source

Commodity risk assessment of Betula pendula and Betula pubescens plants from the UK. [PDF]

EFSA J
Abstract The European Commission requested the EFSA Panel on Plant Health to prepare and deliver risk assessments for commodities listed in Commission Implementing Regulation (EU) 2018/2019 as ‘High risk plants, plant products and other objects’. This Scientific Opinion covers plant health risks posed by plants of Betula pendula and B.
EFSA Panel on Plant Health (PLH), Civera AV, Baptista P, Berlin A, Chatzivassiliou E, Cubero J, Cunniffe N, de la Peña E, Desneux N, Di Serio F, Filipiak A, Hasiów-Jaroszewska B, Jactel H, Landa BB, Maistrello L, Makowski D, Milonas P, Papadopulos NT, Potting R, Susi H, Van Der Gaag DJ, Battisti A, Mas H, Rigling D, Faccoli M, Mikulová A, Stergulc F, Christoph E, Mosbach-Schulz O, Streissl F, Gonthier P.   +30 more
europepmc   +2 more sources

Implications for the Collisional Strength of Jupiter Trojans from the Eurybates Family [PDF]

Astronomical Journal, 2021
In this work, we model the collisional evolution of the Jupiter Trojans and determine under which conditions the Eurybates-Queta system survives. We show that the collisional strength of the Jupiter Trojans and the age of the Eurybates family and by ...
R. Marschall, D. Nesvorný, R. Deienno, I. Wong, H. Levison, W. Bottke   +5 more
semanticscholar   +1 more source

New Active Jupiter Family Comet 2008 QZ44: a Discovery with Citizen Science

Research Notes of the AAS, 2023
We report our discovery of cometary activity in the form of a diffuse tail associated with minor planet 2008 QZ44 during two previous orbits: 2008 and 2017. This finding was prompted in part by Active Asteroids, our Zooniverse-hosted NASA Partner Citizen
C. O. Chandler, W. J. Oldroyd, C. Trujillo, Henry H. Hsieh, Nima Sedaghat, J. Kueny, W. A. Burris, Jarod A. DeSpain, Kennedy A. Farrell, M. Magbanua, S. Sheppard, M. Mazzucato, Milton K. D. Bosch, Tiffany Shaw-Diaz, V. Gonano, Al Lamperti, J. A. da Silva Campos, Brian L. Goodwin, I. Terentev, Charles J. A. Dukes   +19 more
semanticscholar   +1 more source