Results 41 to 50 of about 71,232 (305)

The Radial Distribution and Excitation of H2 around Young Stars in the HST-ULLYSES Survey

The Astronomical Journal, 2023
The spatial distribution and evolution of gas in the inner 10 au of protoplanetary disks form the basis for estimating the initial conditions of planet formation.
Kevin France, Nicole Arulanantham, Erin Maloney, P. Wilson Cauley, P. Ábrahám, Juan M. Alcalá, Justyn Campbell-White, Eleonora Fiorellino, Gregory J. Herczeg, Brunella Nisini, Miguel Vioque   +10 more
doaj   +1 more source

VLT spectropolarimetry of two powerful radio galaxies at z~1.4: UV continuum, emission-line properties and the nature of high-redshift dust

, 2004
(Abridged) Deep VLT spectropolarimetric observations are presented for two powerful radio galaxies, 0850-206 and 1303+091. These observations cover the rest-frame wavelength range ~ 1450 - 3750 A.
A. Cimatti, Antonucci, Antonucci, Athreya, Barthel, Baum, Best, Best, Best, Best, Best, Best, Best, Binette, Bruzual, Bruzual, C. Solórzano-Iñarrea, Calzetti, Carilli, Carilli, Cimatti, Cimatti, Cimatti, Cimatti, Clark, Cohen, Cohen, Cohen, Dey, Dey, di Serego Alighieri, di Serego Alighieri, di Serego Alighieri, di Serego Alighieri, Dickson, Dopita, Dunlop, Fabian, H. J. A. Röttgering, Kapahi, Kishimoto, Maddox, Manzini, Mathis, McCarthy, McCarthy, McCarthy, McLure, Mellema, Osterbrock, P. N. Best, Rees, Röttgering, Schmidt, Seaton, Serkowski, Shaw, Solórzano-Iñarrea, Solórzano-Iñarrea, Stockman, Tadhunter, Tadhunter, Tadhunter, Telfer, Turnshek, Vernet, Zubko   +66 more
core   +1 more source

Advancing Research on Biomaterials and Biological Materials with Scanning Electron Microscopy under Environmental and Low Vacuum Conditions

Advanced Engineering Materials, EarlyView.
Herein, environmental scanning electron microscopy (ESEM) is discussed as a powerful extension of conventional SEM for life sciences. By combining high‐resolution imaging with variable pressure and humidity, ESEM allows the analysis of untreated biological materials, supports in situ monitoring of hydration‐driven changes, and advances the functional ...
Jendrian Riedel, Lea Dierker, Antoine Eyram Kwame, Kim Nora Wagner, Jonas J. Unterholzner, Jan‐Henning Dirks, Dorothea Brüggemann   +6 more
wiley   +1 more source

Early Planet Formation in Embedded Disks (eDisk). XIV. Flared Dust Distribution and Viscous Accretion Heating of the Disk around R CrA IRS 7B-a

The Astrophysical Journal
We performed radiative transfer calculations and observing simulations to reproduce the 1.3 mm dust-continuum and C ^18 O (2–1) images in the Class I protostar R CrA IRS7B-a, observed with the ALMA Large Program “Early Planet Formation in Embedded Disks (
Shigehisa Takakuwa, Kazuya Saigo, Miyu Kido, Nagayoshi Ohashi, John J. Tobin, Jes K. Jørgensen, Yuri Aikawa, Yusuke Aso, Sacha Gavino, Ilseung Han, Patrick M. Koch, Woojin Kwon, Chang Won Lee, Jeong-Eun Lee, Zhi-Yun Li, Zhe-Yu Daniel Lin, Leslie W. Looney, Shoji Mori, Jinshi Sai (Insa Choi), Rajeeb Sharma, Patrick D. Sheehan, Kengo Tomida, Jonathan P. Williams, Yoshihide Yamato, Hsi-Wei Yen   +24 more
doaj   +1 more source

Engineered Mycelial Scaffolds With Tunable Ultraviolet Protection, Wettability, Thermal Stability, and Spatial Mechanics

Advanced Engineering Materials, EarlyView.
Fungal mycelia grown into biodegradable scaffolds and infused with titania nanoparticles show enhanced ultraviolet shielding, thermal protection, and surface nonwettability. Properties were tuned by drying methods, revealing structure–function relationships.
Juwon S. Afolayan, Xin Zhang, Carole C. Perry   +2 more
wiley   +1 more source

Dead or Alive? How Bursty Star Formation and Patchy Dust Can Cause Temporary Quiescence in High-redshift Galaxies

The Astrophysical Journal
The recent discovery of a galaxy at z = 7.3 with undetected optical emission lines and a blue UV-to-optical continuum ratio in JWST spectroscopy is surprising and needs to be explained physically.
Andreas L. Faisst, Takahiro Morishita
doaj   +1 more source

The complex morphology of the young disk MWC 758: Spirals and dust clumps around a large cavity

, 2018
We present Atacama Large Millimeter Array (ALMA) observations at an angular resolution of 0.1-0.2" of the disk surrounding the young Herbig Ae star MWC 758. The data consist of images of the dust continuum emission recorded at 0.88 millimeter, as well as
Benisty, M., Boehler, Y., Carpenter, J., Grady, C., Isella, A., Perez, L., Ricci, L., Shen, Bo-Ting, Tang, Ya-Wen, Weaver, E.   +9 more
core   +3 more sources

The circumstellar disc around the Herbig AeBe star HD169142 [PDF]

, 2005
We present 7 mm and 3.5 cm wavelength continuum observations toward the Herbig AeBe star HD169142 performed with the Very Large Array (VLA) with an angular resolution of ~1".
Acke, Acke, Bessell, D'Alessio, D'Alessio, D'Alessio, D'Alessio, Dent, Dominik, Dullemond, Dullemond, Dullemond, Dunkin, G. Anglada, Greaves, Habart, Herbig, Hernández, Hog, J. M. Torrelles, Jayawardhana, Johnson, Kuhn, M. Osorio, Malfait, Mannings, Meeus, N. Calvet, Natta, Natta, Osorio, Shakura, Siess, Strom, Sylvester, Toomre, W. R. F. Dent, Weidenschilling   +37 more
core   +1 more source

ATOMIUM: Continuum emission and evidence of dust enhancement from binary motion

Astronomy & Astrophysics
Low- and intermediate-mass stars on the asymptotic giant branch (AGB) account for a significant portion of the dust and chemical enrichment in their host galaxy. Understanding the dust formation process of these stars and their more massive counterparts, the red supergiants, is essential for quantifying galactic chemical evolution.
Danilovich, T., Samaratunge, N., Mori, Y.L., Richards, A.M.S., Baudry, A., Etoka, S., Montargès, M., Kervella, P., McDonald, I., Gottlieb, C.A., Wallace, A., Price, D.J., Decin, L., Bolte, J., Ceulemans, T., De Ceuster, F., de Koter, A., Dionese, D., El Mellah, I., Esseldeurs, M., Gray, M., Herpin, F., Khouri, T., Lagadec, E., Landri, C., Marinho, L., Menten, K.M., Millar, T.J., Müller, H.S.P., Pimpanuwat, B., Plane, J., Sahai, R., Siess, L., Van de Sande, M., Vermeulen, O., Wong, K.T., Yates, J., Zijlstra, A.   +37 more
openaire   +3 more sources

THE BOLOCAM GALACTIC PLANE SURVEY: λ = 1.1 AND 0.35 mm DUST CONTINUUM EMISSION IN THE GALACTIC CENTER REGION [PDF]

The Astrophysical Journal, 2010
76 pages, 22 figures, published in ApJ: http://iopscience.iop.org/0004-637X/721/1/137/
Bally, John, Aguirre, James, Battersby, Cara, Bradley, Eric Todd, Cyganowski, Claudia, Dowell, Darren, Drosback, Meredith, Dunham, Miranda K., Evans, Neal J., Ginsburg, Adam, Glenn, Jason, Harvey, Paul, Mills, Elisabeth, Merello, Manuel, Rosolowsky, Erik, Schlingman, Wayne, Shirley, Yancy L., Stringfellow, Guy S., Walawender, Josh, Williams, Jonathan   +19 more
openaire   +4 more sources