Results 51 to 60 of about 3,893,324 (356)
Planetary nebulae as mass tracers in galaxies [PDF]
Proceedings of the International Astronomical Union, 2006 Planetary nebulae are useful kinematic tracers of the stars in all galaxy types. I review recent observationally-driven developments in the study of galaxy mass profiles. These have yielded surprising results on spiral galaxy disk masses and elliptical galaxy halo masses.
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Forming equal-mass planetary binaries via pebble accretion
Astronomy & Astrophysics, 2023 Context. Binary Solar System objects are common, ranging from satellite systems with very large mass ratios, M1/M2, to those with mass ratios approaching unity. One well-known example of a binary is the Pluto-Charon system. With Charon being 'only' eight times less massive than Pluto, the question arises (as in the case of many other systems) as to why
T. J. Konijn +3 more
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Two empirical regimes of the planetary mass-radius relation [PDF]
, 2017 Today, with the large number of detected exoplanets and improved measurements, we can reach the next step of planetary characterization. Classifying different populations of planets is not only important for our understanding of the demographics of ...
D. Bashi +3 more
semanticscholar +1 more source
The Hawaii Infrared Parallax Program. III. 2MASS J0249–0557 c: A Wide Planetary-mass Companion to a Low-mass Binary in the β Pic Moving Group [PDF]
Astronomical Journal, 2018 We have discovered a wide planetary-mass companion to the β Pic moving group member 2MASS J02495639−0557352 (M6 vl-g) using Canada–France–Hawaii Telescope/WIRCam astrometry from the Hawaii Infrared Parallax Program.
T. Dupuy +8 more
semanticscholar +1 more source
MASS LOSS FROM PLANETARY NEBULAE IN ELLIPTICAL GALAXIES [PDF]
The Astrophysical Journal, 2009 34 pages with 20 figures.
Bregman, Joel N., Parriott, Joel R.
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Progress in Earth and Planetary Science, 2021 In the East Asian monsoon area, stalagmites generally record lower and higher oxygen isotope (δ18O) levels during warm humid interglacial and cold dry glacial periods, respectively.
Shota Amekawa +8 more
doaj +1 more source
WFIRST Exoplanet Mass-measurement Method Finds a Planetary Mass of 39 ± 8 M⊕ for OGLE-2012-BLG-0950Lb [PDF]
Astronomical Journal, 2018 We present the analysis of the simultaneous high-resolution images from the Hubble Space Telescope and Keck adaptive optics system of the planetary event OGLE-2012-BLG-0950 that determine that the system consists of a 0.58 ± 0.04 host star orbited by a ...
A. Bhattacharya +15 more
semanticscholar +1 more source
Probing the Upper Scorpius mass function in the planetary-mass regime★ [PDF]
Monthly Notices of the Royal Astronomical Society, 2013 We present the results of a deep ZYJ near-infrared survey of 13.5 square degrees in the Upper Scorpius (USco) OB association. We photometrically selected ~100 cluster member candidates with masses in the range 30-5 Jupiters, according to state-of-the-art evolutionary models.
Lodieu, N. +6 more
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Rethinking plastic waste: innovations in enzymatic breakdown of oil‐based polyesters and bioplastics
FEBS Open Bio, EarlyView.Plastic pollution remains a critical environmental challenge, and current mechanical and chemical recycling methods are insufficient to achieve a fully circular economy. This review highlights recent breakthroughs in the enzymatic depolymerization of both oil‐derived polyesters and bioplastics, including high‐throughput protein engineering, de novo ...
Elena Rosini +2 more
wiley +1 more source
SIMP J013656.5+093347 Is Likely a Planetary-mass Object in the Carina-Near Moving Group [PDF]
, 2017 We report on the discovery that the nearby (∼6 pc) photometrically variable T2.5 dwarf SIMP J013656.5+093347 is a likely member of the ∼200 Myr old Carina-Near moving group with a probability of >99.9% based on its full kinematics.
J. Gagn'e +8 more
semanticscholar +1 more source