Results 41 to 50 of about 466 (130)

The Volatile Composition of Comet 17P/Holmes after Its Extraordinary Outburst

The Astrophysical Journal, 2008
The volatile abundances in comet 17P/Holmes were measured on three dates (UT 2007 October 27.6 and 31.3 and November 2.3) using high-dispersion (λ/Δ λ ~ 2.5 × 104) infrared spectroscopy with NIRSPEC at the W. M. Keck Observatory and CSHELL at the NASA Infrared Telescope Facility.
Russo, N. Dello, Vervack, R. J., Jr., Weaver, H. A., Montgomery, M. M., Deshpande, R., Fernández, Y. R., Martin, E. L.   +6 more
openaire   +3 more sources

Dust and Volatiles in the Disintegrating Comet C/2019 Y4 (ATLAS)

The Astrophysical Journal
Abstract C/2019 Y4 (ATLAS) is an Oort cloud comet with an orbital period of ∼5895 yr. Starting in 2020 March, its nucleus underwent disintegration. In order to investigate the gas and dust properties of C/2019 Y4 (ATLAS) during its disintegration, we obtained long-slit spectra at 3600–8700 Å and BVRI multiband images with the Xinglong 2 ...
Ruining Zhao, Aigen Li, Bin Yang, Liang Wang, Huijuan Wang, Yu-Juan Liu, Jifeng Liu   +6 more
openaire   +3 more sources

Spectroscopic identification of water emission from a main-belt comet. [PDF]

Nature, 2023
Kelley MSP, Hsieh HH, Bodewits D, Saki M, Villanueva GL, Milam SN, Hammel HB.   +6 more
europepmc   +1 more source

Hyper-volatiles in Comet C/2010 G2 (Hill)

, 2013
We performed high-dispersion near-infrared spectroscopic observations of comet C/2010 G2 (Hill) at 2.5 AU from the Sun using NIRSPEC (R ~ 2.5x10^4) at the Keck II telescope on UT 2012 Jan 9 and 10. The comet had been in outburst. Over the two nights of our observations, prominent emission lines of CH4 and C2H6 along with weaker emission lines of H2O ...
Kawakita, Hideyo, Dello Russo, N., Vervack, R. J. J., Kobayashi, H., DiSanti, M. A., Opitom, Cyrielle, Jehin, Emmanuel, Weaver, H. A.   +7 more
openaire   +1 more source

The Morphology of Volatile-rich Regoliths on Asteroids and Comets [PDF]

Recent space missions to asteroids and comets, have revealed divers morphologic features on multiple scales that can be linked to the presence of volatiles in the regolith of small bodies. The research presented in this thesis investigates the physics of these volatilerelated morphologies addressing (1) the relationship between surface morphologies and
openaire   +1 more source

From linoleic acid to hexanal and hexanol by whole cell catalysis with a lipoxygenase, hydroperoxide lyase and reductase cascade in Komagataella phaffii. [PDF]

Front Mol Biosci, 2022
Hashem C, Hochrinner J, Bürgler MB, Rinnofner C, Pichler H, Winkler M.   +5 more
europepmc   +1 more source

Exogenic origin for the volatiles sampled by the Lunar CRater Observation and Sensing Satellite impact. [PDF]

Nat Commun, 2022
Mandt KE, Mousis O, Hurley D, Bouquet A, Retherford KD, Magaña LO, Luspay-Kuti A.   +6 more
europepmc   +1 more source

Scientific opinion on the renewal of the authorisation of Scansmoke SEF7525 (SF-004) as a smoke flavouring Primary Product. [PDF]

EFSA J, 2023
EFSA Panel name on Food Additives and Flavourings (FAF), Younes M, Aquilina G, Castle L, Degen G, Engel KH, Fowler PJ, Frutos Fernandez MJ, Fürst P, Gundert-Remy U, Gürtler R, Husøy T, Manco M, Moldeus P, Passamonti S, Shah R, Waalkens-Berendsen I, Wright M, Benigni R, Boon P, Bolognesi C, Cordelli E, Chipman K, Sahlin U, Carfì M, Carnesecchi E, Martino C, Mech A, Multari S, Palaniappan V, Tard A, Mennes W.   +31 more
europepmc   +1 more source

A Comparison of Presolar Isotopic Signatures in Laboratory-Studied Primitive Solar System Materials and Comet 67P/Churyumov-Gerasimenko: New Insights from Light Elements, Halogens, and Noble Gases. [PDF]

Space Sci Rev, 2023
Hoppe P, Rubin M, Altwegg K.
europepmc   +1 more source

Impact-processed nitrogen-bearing organics in Chang'e-5 and Chang'e-6 lunar regolith. [PDF]

Sci Adv
Dong M, Hao J, Changela HG, Tian H, Huang S, He Y, Liu X, Li X, Hu S, Yang W, Lin Y.   +10 more
europepmc   +1 more source