Results 51 to 60 of about 40,461 (205)

Constraints on the height of the inner disk rim in pre-main-sequence stars

, 2014
The structure of inner region of protoplanetary disks around young pre-main-sequence stars is still poorly understood. This part of the disk is shaped by various forces that influence dust and gas dynamics, and by dust sublimation, which creates abrupt ...
Vinković, Dejan
core   +1 more source

First evidence for dusty disks around Herbig Be stars

, 2003
We have carried out a high-sensitivity search for circumstellar disks around Herbig Be stars in the continuum at 1.4mm and 2.7mm using the IRAM interferometer at the Plateau de Bure (PdBI) .
A. Fuente, A. Natta, A. Rodrguez-Franco, Curiel S., Fuente A., Girart J. M., L. Testi, Leinert C., R. Bachiller, R. Neri, The P. S.   +10 more
core   +1 more source

Protostellar clusters in intermediate-mass (IM) star forming regions [PDF]

, 2007
The transition between the low density groups of T Tauri stars and the high density clusters around massive stars occurs in the intermediate-mass (IM) range (M$_*$$\sim$2--8 M$_\odot$).
A. Fuente, Beltrán, Bottinelli, C. Ceccarelli, Codella, Codella, D. Johnstone, Davis, E. F. van Dishoeck, F. Wyrowski, Fuente, Fuente, Fuente, Getman, Hogerheijde, Huard, Hunter, Kaas, Natta, Nisini, P. Caselli, R. Neri, T. Alonso-Albi, Testi, Testi, Testi, Testi, Williams   +27 more
core   +3 more sources

Electron Microscopy Transfer System to Protect Atmosphere‐Sensitive Materials for Scanning Electron Microscopy Characterization

Microscopy Research and Technique, EarlyView.
SEM–EDX and XRD characterization confirm that pouches made from readily available aluminum foil, used in combination with a commercial cryo‐EM transfer system, effectively protect highly atmosphere‐sensitive and/or hygroscopic materials from contamination during transfer from inert environments to the SEM vacuum chamber.
Louis G. Corcoran, Ellen M. Monzo, Chinomso E. Onuoha, Shivasheesh Varshney, Han Seung Lee, Chris Frethem, Bharat Jalan, Alon V. McCormick, R. Lee Penn   +8 more
wiley   +1 more source

Millimeter imaging of HD 163296: probing the disk structure and kinematics

, 2007
We present new multi-wavelength millimeter interferometric observations of the Herbig Ae star HD 163296 obtained with the IRAM/PBI, SMA and VLA arrays both in continuum and in the 12CO, 13CO and C18O emission lines.
A. Isella, A. Natta, Beckwith, Beckwith, Beckwith, C. Qi, Calvet, Chiang, Corder, D'Alessio, D'Alessio, D. Wilner, Dartois, de Winter, Devine, Dullemond, Dullemond, Dutrey, Dutrey, Dutrey, Dutrey, Garcia Lopez, Grady, Grady, Isella, Isella, Jonkheid, L. Testi, Lodato, Mannings, Mannings, Natta, Palla, Piétu, Piétu, Piétu, R. Neri, Rodmann, Semenov, Simon, Testi, Thi, van den Ancker, Wassell, Weingartner   +44 more
core   +1 more source

X-Shooter study of accretion in $\rho$-Ophiucus: very low-mass stars and brown dwarfs [PDF]

, 2015
We present new VLT/X-Shooter optical and NIR spectra of a sample of 17 candidate young low-mass stars and BDs in the rho-Ophiucus cluster. We derived SpT and Av for all the targets, and then we determined their physical parameters.
Alcalá, J. M., Manara, C. F., Natta, A., Testi, L.   +3 more
core   +2 more sources

Outline of a Washing Treatment to Improve Electric Arc Furnace Slag Environmental Behavior

steel research international, EarlyView.
This study evaluates a water‐washing treatment for electric arc furnace slag to reduce the leaching of hazardous elements (Cr, Ba, Mo, and V), enabling its reuse. The process effectively decreases leachate concentrations. Using the treated slag as a substitute aggregate in concrete reduces greenhouse gases emissions by 42.5% compared to landfilling ...
Luca Testini, Davide Mombelli, Giovanni Dotelli, Mario Grosso, Carlo Mapelli   +4 more
wiley   +1 more source

An evolved disk surrounding the massive main sequence star MWC 297?

, 2007
We present the results of the interferometric observations of the circumstellar disk surrounding MWC 297 in the continuum at 230 GHz (1.3 mm) and in the (J=2-1) rotational transitions of $^{12}$CO,$^{13}$CO and C$^{18}$O using the Submillimeter Array. At
Drew J. E., Dutrey A., Gorti U., H. C. Bhatt, Henning T., Huei-Ru Chen, Kramer C., Mannings V., N. M. Ashok, Nagayoshi Ohashi, P. Manoj, Paul T. P. Ho, Qizhou Zhang, Tatsuhiko Hasegawa   +13 more
core   +1 more source

Anchoring return: the role of the Solutions Strategy

Forced Migration Review, 2014
Providing a minimum standard of living and livelihood opportunities to help anchor those who have returned is critical for the future stability and security of Afghanistan.
Pierfrancesco Maria Natta
doaj  

Kinetic trapping of 2,4,6-tris(4-pyridyl)benzene and ZnI2 into M12L8 poly-[n]-catenanes using solution and solid-state processes

Scientific Reports, 2023
Here, we show that in a supramolecular system with more than 20 building blocks forming large icosahedral M 12 L 8 metal–organic cages (MOCs), using the instant synthesis method, it is possible to kinetically trap and control the formation of ...
Javier Martí-Rujas, Stefano Elli, Antonino Famulari   +2 more
doaj   +1 more source