Results 91 to 100 of about 58,260 (304)

Centimeter-sized Grains in the Compact Dust Ring around Very-low-mass Star CIDA 1

The Astronomical Journal, 2023
We examined the grain size in the dust ring encircling the 0.19 M _☉ T Tauri star CIDA 1 using the Karl G. Jansky Very Large Array at multiple centimeter wavelengths, with a spatial resolution of 0.″2–0.″9. We detected distinct partial-ring structures at
Jun Hashimoto, Hauyu Baobab Liu, Ruobing Dong, Beibei Liu, Takayuki Muto, Yuka Terada   +5 more
doaj   +1 more source

XMM-Newton observations of the sigma Ori cluster. II. Spatial and spectral analysis of the full EPIC field

, 2005
We present the results of an XMM-Newton observation of the young (~2-4 Myr) cluster around the hot star sigma Orionis. In a previous paper we presented the analysis of the RGS spectrum of the central hot star; here we discuss the results of the analysis ...
Argiroffi, Argiroffi, Baraffe, Barrado y Navascués, Barrado y Navascués, Barrado y Navascués, Berghöfer, Brown, Burningham, Béjar, Béjar, Béjar, Caballero, Damiani, E. Franciosini, Favata, Feigelson, Feigelson, Flaccomio, Flaccomio, Flaccomio, Flaccomio, Gagné, Garmire, Garmire, Getman, Hasinger, Hesser, Imanishi, Imanishi, J. Sanz-Forcada, Kastner, Kastner, Kenyon, Kenyon, Lavalley, Lee, Leggett, Martín, Mokler, Muzerolle, Neuhäuser, Oliveira, Oliveira, Oliveira, Ozawa, Pallavicini, Preibisch, Preibisch, Preibisch, R. Pallavicini, Ramírez, Randich, Sanz-Forcada, Scelsi, Schmitt, Scholz, Sherry, Siess, Skinner, Stassun, Stelzer, Stelzer, Stelzer, Stelzer, Tozzi, Walter, Weaver, Zapatero Osorio, Zapatero Osorio   +69 more
core   +1 more source

HOT GAS LINES IN T TAURI STARS [PDF]

The Astrophysical Journal Supplement Series, 2013
ABSTRACT For Classical T Tauri Stars (CTTSs), the resonance doublets of N v, Si iv, and C iv, as well as the He ii 1640 Å line, trace hot gas flows and act as diagnostics of the accretion process. In this paper we assemble a large high-resolution, high-sensitivity data set of these lines in CTTSs and Weak T Tauri Stars (WTTSs).
Ardila, David, Herczeg, Gregory, Gregory, Scott, Ingleby, Laura, France, Kevin, Brown, Alexander, Edwards, Suzan, Johns-Krull, Christopher, Linsky, Jeffrey, Yang, Hao, Valenti, Jeff, Abgrall, Hervé, Alexander, Richard, Bergin, Edwin, Bethell, Thomas, Brown, Joanna, Calvet, Nuria, Espaillat, Catherine, Hillenbrand, Lynne, Hussain, Gaitee, Roueff, Evelyne, Schindhelm, Eric, Walter, Frederick   +22 more
openaire   +7 more sources

Culture, Connection and Care: The Role of Institutional Justice Capital for Enhancing the Wellbeing of Aboriginal and Torres Strait Islander Children in Out‐Of‐Home Care

Australian Journal of Social Issues, EarlyView.
ABSTRACT Ensuring that Aboriginal and Torres Strait Islander children removed from their families by child protection services remain connected to their kin, Country and culture is a priority to begin to redress the intergenerational trauma and harm caused by colonisation.
Sharynne Hamilton, Larissa Jones, Millie Penny, Charmaine Pell, Sarah Maslen, Carol Michie, Raewyn Mutch, Melissa O’Donnell, Carrington Shepherd, Brad Farrant   +9 more
wiley   +1 more source

A Comprehensive Analysis of Rovibrational CO in the Era of JWST

The Astronomical Journal
We present an analysis of CO rovibrational emission lines in the 183 infrared spectra of nearby Class II objects obtained with the NIRSPEC instrument on the Keck II telescope over the past two decades.
D. Annie Dickson-Vandervelde, Colette Salyk, Geoffrey A. Blake, Clara Ross, Adwin Boogert, Klaus Pontoppidan   +5 more
doaj   +1 more source

The Ca ii Lines as Tracers of Disk Structure in T Tauri Stars: The Chamaeleon I Region

The Astrophysical Journal, 2023
We present a study of the Ca ii K and IR triplet lines in a sample of classical T Tauri stars in the Chamaeleon I star-forming region. We study X-shooter spectra of the stars in the sample and find that in some of these stars the Ca ii lines are much ...
Marbely Micolta, Nuria Calvet, Thanawuth Thanathibodee, Gladis Magris C., María José Colmenares, Jesús V. Díaz, Jairo Alzate-Trujillo   +6 more
doaj   +1 more source

Rotation in NGC 2264: a study based on CoRoT photometric observations [PDF]

, 2013
Rotation is one of the key stellar parameters which undergo substantial evolution during the stellar lifetime, in particular during the early stages.
Affer, Laura, Bouvier, Jerome, Favata, Fabio, Flaccomio, Ettore, Micela, Giuseppina   +4 more
core   +1 more source

An ecological framework for microbial metabolites in the ocean ecosystem

Limnology and Oceanography Letters, EarlyView.
Abstract The ocean microbe‐metabolite network involves thousands of individual metabolites that encompass a breadth of chemical diversity and biological functions. These microbial metabolites mediate biogeochemical cycles, facilitate ecological relationships, and impact ecosystem health. While analytical advancements have begun to illuminate such roles,
Bryndan P. Durham, Winifred M. Johnson, Catherine C. Bannon, Erin M. Bertrand, Anitra E. Ingalls, Bethanie R. Edwards, Amy Apprill, Angela K. Boysen, Randelle M. Bundy, Huan Chen, Frank X. Ferrer‐González, Cara Fiore, Katherine R. Heal, Constanze Kuhlisch, Shuting Liu, Kaijun Lu, Laurel E. Meke, Sammy Pontrelli, Prabavathy Vaiyapuri Ramalingam, Alicia M. Reigel, Joshua S. Sacks, Jeremy E. Schreier, Jegan Sekar, Mario Uchimiya, Elizabeth B. Kujawinski   +24 more
wiley   +1 more source

Gendering Late Ottoman Society and Reconstructing Gender in the Women's Press

Gender &History, EarlyView.
ABSTRACT This article analyses the construction of gender differences in the late Ottoman Empire through women's periodicals, which acted as a key medium in the redefinition of gender roles. It examines how new understandings of gender roles emerged amid rapid transformations in traditional societal structures, particularly in the women’s press.
Tuğba Karaman
wiley   +1 more source

Dust Around T Tauri Stars [PDF]

Journal of Astronomy and Space Sciences, 2011
To reproduce the multiple broad peaks and the fine spectral features in the spectral energy distributions (SEDs) of T Tauri stars, we model dust around T Tauri stars using a radiative transfer model for multiple isothermal circumstellar dust shells. We calculate the radiative transfer model SEDs for multiple dust shells using the opacity functions for ...
Young-Joo Kwon, Kyung-Won Suh
openaire   +3 more sources