Results 31 to 40 of about 221,766 (238)

MOLECULAR GAS IN YOUNG DEBRIS DISKS [PDF]

open access: yesThe Astrophysical Journal, 2011
Accepted for publication in ApJ Letters, 8 pages, 3 figures, 1 tables (emulateapj style)
Moór, A.   +9 more
openaire   +2 more sources

THE DEBRIS DISK AROUND HR 8799 [PDF]

open access: yesThe Astrophysical Journal, 2009
We have obtained a full suite of Spitzer observations to characterize the debris disk around HR 8799 and to explore how its properties are related to the recently discovered set of three massive planets orbiting the star. We distinguish three components to the debris system: (1) warm dust (T ~150 K) orbiting within the innermost planet; (2) a broad ...
Su, K. Y. L.   +8 more
openaire   +2 more sources

Debris Disk Evolution around A Stars [PDF]

open access: yesThe Astrophysical Journal, 2006
17 pages, accepted for publication in ...
Su, K. Y. L.   +10 more
openaire   +2 more sources

Observing planet-disk interaction in debris disks [PDF]

open access: yesAstronomy & Astrophysics, 2012
Context. Structures in debris disks induced by planetdisk interaction are promising to provide valuable constraints on the existence and properties of embedded planets. Aims. We investigate the observability of structures in debris disks induced by planet-disk interaction. Methods.
Ertel, S., Wolf, S., Rodmann, J.
openaire   +5 more sources

AN ATCA SURVEY OF DEBRIS DISKS AT 7 MILLIMETERS [PDF]

open access: yesThe Astrophysical Journal, 2015
We present Australia Telescope Compact Array continuum observations at a wavelength of 6.8 mm of five debris disks: β Pictoris, q1 Eridani, HD 107146, HD 181327, and HD 95086. These observations provide the detection at the longest wavelengths obtained to date for all these debris disks.
L. Ricci   +6 more
openaire   +3 more sources

Characterization of the key membrane protein cytochrome Cyc2 from Ghiorsea bivora

open access: yesFEBS Open Bio, EarlyView.
This study reports the first detailed biochemical analysis of Cyc2TAG1_1, a cytochrome protein involved in microbial iron oxidation. We produced and purified this enzyme in E. coli, then measured its iron‐oxidizing efficiency, and characterized its electrical and structural properties.
Josiane Azizi   +6 more
wiley   +1 more source

Molecular gas in young debris disks

open access: yes, 2016
Debris disks are generally thought to be the gas poor descendants of protoplanetary disks. While this characteristic may be true for most debris systems, recent surveys in rotational transitions of carbon monoxide led to a growing sample of debris disks ...
Moór, Attila (5266990), Moór, Attila
core   +1 more source

Cryogenic Deformation Behavior of TiAl and Insights Into Embrittlement After High‐Temperature Exposure Combined With Secondary Ion Mass Spectroscopy of Near Surface Chemistry

open access: yesAdvanced Engineering Materials, EarlyView.
Near‐surface deuterium enrichment profiles for different microstructural types of TiAl after exposure at 700 °C in a heavy water‐containing environment. The deuterium levels are significantly higher than expected from natural occurrence, indicating that the heavy water dissociated during the exposure treatment and entered the specimens.
Jonathan D. H. Paul   +5 more
wiley   +1 more source

Dynamically Actuated Reconfigurable Topographical Surface Enables Active Control of Implant‐Associated Infections

open access: yesAdvanced Functional Materials, EarlyView.
A dynamically actuated reconfigurable topographical surface (DARTS) integrates contact‐mediated bactericidal nanotopography with programmable mechanical actuation to actively disrupt bacterial biofilms. Dynamic surface reconfiguration enhances bacterial killing and suppresses implant‐associated infections in vivo, providing a new strategy for active ...
Mohammad Asadi Tokmedash   +4 more
wiley   +1 more source

An Integrated Oxygen‐Supplying Device and Predictive Multiphysics Model for Extended Ambient Transport of Insulin‐Producing Cells

open access: yesAdvanced Functional Materials, EarlyView.
Cell therapies typically rely on cold‐chain logistics and cryopreservation, limiting access and compromising cell quality. Here, a dual‐chamber device separates an oxygen‐supplying chamber from a hyaluronic acid cargo chamber, sustaining oxygen delivery for over 70 h and enabling ambient‐temperature shipment.
Daniel A. Domingo‐Lopez   +9 more
wiley   +1 more source

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