Results 111 to 120 of about 2,475,342 (218)

Fully Anharmonic Infrared Spectra of Neutral Polycyclic Aromatic Hydrocarbons with Up to 38 Carbons

The Astrophysical Journal
Interstellar aromatic infrared band (AIB) spectra show agreement with presently computed anharmonic spectra for various types of polycyclic aromatic hydrocarbons (PAHs) determined using a novel semiempirical quantum chemical method.
Nolan J. H. White, Vincent J. Esposito, Christiaan Boersma, Louis J. Allamandola, Jesse D. Bregman, Alexandros Maragkoudakis, Pasquale Temi, Ryan C. Fortenberry   +7 more
doaj   +1 more source

Theoretical study of the photodissociation of Li2+ in one-color intense laser fields

, 2011
Theoretical study of the photodissociation of Li2+ in one-color intense laser ...
江万义, MarkR.Hoffmann, YuriyG.Khait, 李元俊, andMarkR.Hoffmann   +4 more
core  

Revealing the Photodissociation Region:HST/NICMOS Imaging of NGC 7027

The Astrophysical Journal, 2000
We report results from a Hubble Space Telescope (HST) and Near-Infrared Camera and Multiobject Spectrometer (NICMOS) program to study the distribution of hot neutral (molecular hydrogen) and ionized circumstellar material in the young planetary nebulae NGC 7027.
Latter, WB, Dayal, A, Bieging, JH, Meakin, C, Hora, JL, Kelly, DM, Tielens, AGGM   +6 more
openaire   +2 more sources

The White Paper on EU Governance: The Right Tool for the Wrong Means

, 2008
Committee of Regions, First Atelier on Multilevel Governance, Bruxelles, 10.9 ...
PALERMO, Francesco
core  

Fine-structure-resolved Rovibrational Excitation of OH due to Collisions with He for Nonequilibrium Emission Modeling

The Astrophysical Journal
The hydroxyl radical (OH) is a key species in the water chemistry of star-forming regions. State-to-state rate coefficients for transitions induced by abundant perturbers like He are needed for astrophysical models in regions where the molecular internal
T. J. Price, Brandon Vargo, Caleb Taylor, Josiah Taylor, Robert C. Forrey, Zizhe Hu, Benhui Yang, P. C. Stancil   +7 more
doaj   +1 more source

Exploring the energy disposal immediately after bond-breaking in solution:the wavelength-dependent excited state dissociation pathways of para-methylthiophenol [PDF]

, 2013
A wavelength-resolved (λpump = 295, 285, 270, and 267 nm) photodissociation study of para-methylthiophenol (p-MePhSH) in ethanol solution has been performed using femtosecond transient absorption (TA) spectroscopy, and the results compared with those ...
Das, Saptaparna, Oliver, Thomas A.A., Bradforth, Stephen E., Ashfold, Michael N. R., Zhang, Yuyuan, Roy, Anirban   +5 more
core   +1 more source

Photodissociation Dynamics of o-Nitrobenzoic Acid

, 2009
Photodissociation dynamics of o-nitrobenzoic acid at 295 and 355 nm was studied by probing the nascent OH photoproduct employing the single-photon laser induced fluorescence technique.
尹鸿鸣, 韩克利, 何国钟, 孙巨龙, 程世博, 周灿华   +5 more
core  

Unveiling Stellar Feedback and Cloud Structure in the ρ Ophiuchi-A Region Using ALMA and JWST: Discovery of Substellar Cores, C18O Striations, and Protostellar Outflows

The Astrophysical Journal
In clustered star-forming regions, stellar feedback, such as H ii regions/photon-dominated regions (PDRs), and protostellar jets/outflows, shapes cloud structures and influences star formation. Using high-resolution Atacama Large Millimeter/submillimeter
Fumitaka Nakamura, Ryohei Kawabe, Shuo Huang, Kazuya Saigo, Naomi Hirano, Shigehisa Takakuwa, Takeshi Kamazaki, Motohide Tamura, James Di Francesco, Rachel Friesen, Kazunari Iwasaki, Chihomi Hara   +11 more
doaj   +1 more source

Oxygen isotopic fractionation during UV and visible light photodissociation of ozone

, 2003
Stratospheric ozone is essentially in a steady state due to the simultaneous formation and dissociation and found to be enriched (mass-independently) in heavy oxygen isotopes. Though there have been a number of experimental and theoretical studies on the
S. K. Bhattacharya, Chakraborty, Subrata, Subrata Chakraborty, Bhattacharya, S. K.   +3 more
core   +1 more source

Spatial distribution of organics in the Horsehead nebula: Signposts of chemistry driven by atomic carbon

Astronomy & Astrophysics
Complex organic molecules (COMs) are considered essential precursors to prebiotic species in the interstellar and circumstellar medium. Despite their astrobiological relevance, many aspects of the formation of COMs remain unclear, particularly the role ...
Hernández-Vera Claudio, Guzmán Viviana V., Pety Jérôme, Wong Ka Tat, Goicoechea Javier R., Le Petit Franck, Gerin Maryvonne, den Braber Aquiles, Carpenter John M., Maillard Vincent, Bron Emeric, Gratier Pierre, Roueff Evelyne   +12 more
doaj   +1 more source