On the origin of planetary-mass objects in NGC1333 [PDF]
, 2023 The dominant formation mechanism of brown dwarfs and planetary mass objects in star-forming regions is presently uncertain. Do they form like stars, via the collapse and fragmentation of cores in Giant Molecular clouds, or do they form like planets in ...
R. Parker, Catarina Alves de Oliveira
semanticscholar +1 more source
Perturbers: SPHERE detection limits to planetary-mass companions in protoplanetary disks [PDF]
Astronomy & Astrophysics, 2021 The detection of a wide range of substructures such as rings, cavities, and spirals has become a common outcome of high spatial resolution imaging of protoplanetary disks, both in the near-infrared scattered light and in the thermal millimetre continuum ...
R. Asensio-Torres +27 more
semanticscholar +1 more source
Obliquity Constraints on the Planetary-mass Companion HD 106906 b [PDF]
Astronomical Journal, 2021 We constrain the angular momentum architecture of HD 106906, a 13 ± 2 Myr old system in the ScoCen complex composed of a compact central binary, a widely separated planetary-mass tertiary HD 106906 b, and a debris disk nested between the binary and ...
M. Bryan +4 more
semanticscholar +1 more source
On the Detection of Exomoons Transiting Isolated Planetary-mass Objects [PDF]
Astrophysical Journal Letters, 2021 All-sky imaging surveys have identified several dozen isolated planetary-mass objects (IPMOs) far away from any star. Here we examine the prospects for detecting transiting moons around these objects.
M. Limbach +6 more
semanticscholar +1 more source
A Wide Planetary Mass Companion Discovered through the Citizen Science Project Backyard Worlds: Planet 9 [PDF]
Astrophysical Journal, 2021 Through the Backyard Worlds: Planet 9 citizen science project we discovered a late-type L dwarf co-moving with the young K0 star BD+60 1417 at a projected separation of 37″ or 1662 au.
J. Faherty +24 more
semanticscholar +1 more source
Exploring the planetary-mass population in the Upper Scorpius association [PDF]
Monthly notices of the Royal Astronomical Society, 2021 We aim at identifying very low-mass isolated planetary-mass member candidates in the nearest OB association to the Sun, Upper Scorpius (USco) (145 pc; 5–10 Myr), to constrain the form and shape of the luminosity function and mass spectrum in this ...
N. Lodieu +8 more
semanticscholar +1 more source
Obliquity Constraints on an Extrasolar Planetary-mass Companion [PDF]
Astronomical Journal, 2020 We place the first constraints on the obliquity of a planetary-mass companion outside of the solar system. Our target is the directly imaged system 2MASS J01225093–2439505 (2M0122), which consists of a 120 Myr 0.4 M⊙ star hosting a 12–27 MJ companion at ...
M. Bryan +10 more
semanticscholar +1 more source
Development and prospect of planetary optical remote sensing at Lenghu
地球与行星物理论评, 2021 Planetary science is the one among the frontiers of science in the world and also is one of the key components of the development strategy of science and technology in China, which reflects the state of national natural science and the comprehensive ...
Fei He, Zhonghua Yao, Yong Wei
doaj +1 more source
Dynamic changes in optical and chemical properties of tar ball aerosols by atmospheric photochemical aging [PDF]
Atmospheric Chemistry and Physics, 2019 Following wood pyrolysis, tar ball aerosols were laboratory generated from wood tar separated into polar and nonpolar phases. Chemical information of fresh tar balls was obtained from a high-resolution time-of-flight aerosol mass spectrometer (HR-ToF-AMS)
C. Li +9 more
doaj +1 more source
Evidence for benthic–pelagic food web coupling and carbon export from California margin bamboo coral archives [PDF]
Biogeosciences, 2014 Deep-sea bamboo corals (order Gorgonacea, family Isididae) are known to record changes in water mass chemistry over decades to centuries. These corals are composed of a two-part skeleton of calcite internodes segmented by gorgonin organic nodes.
T. M. Hill +3 more
doaj +1 more source