Results 111 to 120 of about 28,808 (222)

AKARI infrared imaging of reflection nebulae IC4954 and IC4955

, 2007
We present the observations of the reflection nebulae IC4954 and IC4955 region with the Infrared Camera (IRC) and the Far-Infrared Surveyor (FIS) on board the infrared astronomical satellite AKARI during its performance verification phase.
Doi, Yasuo, Fujishiro, Naofumi, Fujiwara, Hideaki, Ishihara, Daisuke, Ita, Yoshifusa, Kaneda, Hidehiro, Kataza, Hirokazu, Kii, Tuneo, Kim, Woojung, Makiuti, Sin'itirou, Matsuhara, Hideo, Matsumoto, Toshio, Murakami, Hiroshi, Nakagawa, Takao, Ohyama, Youichi, Okada, Yoko, Onaka, Takashi, Oyabu, Shinki, Sakon, Itsuki, Serjeant, Stephen, Shibai, Hiroshi, Suzuki, Toyoaki, Takagi, Toshinobu, Tanabe, Toshihiko, Uemizu, Kazunori, Ueno, Munetaka, Usui, Fumihiko, Wada, Takehiko, Watarai, Hidenori   +28 more
core   +1 more source

Illuminating the Incidence of Extraplanar Dust Using Ultraviolet Reflection Nebulae with GALEX

The Astrophysical Journal
Circumgalactic dust grains trace the circulation of mass and metals between star-forming regions and gaseous galactic halos, giving insight into feedback and tidal stripping processes.
Erin Boettcher, Edmund Hodges-Kluck
doaj   +1 more source

Carbon stars with alpha-C:H emission [PDF]

Many carbon stars in the IRS low resolution spectra (LRS) catalog were found which display emission spectra that compare favorable with the absorption spectrum of alpha-C:H. These stars have largely been classified as 4X in the LRS which has led to their
Gerbault, Florence, Goebel, John H.
core   +1 more source

Galactic Gamma-Ray Diffuse Emission at TeV Energies with HAWC Data

The Astrophysical Journal
Galactic gamma-ray diffuse emission (GDE) is emitted by cosmic rays (CRs), ultra-relativistic protons, and electrons, interacting with gas and electromagnetic radiation fields in the interstellar medium.
R. Alfaro, C. Alvarez, J. C. Arteaga-Velázquez, K. P. Arunbabu, D. Avila Rojas, R. Babu, V. Baghmanyan, E. Belmont-Moreno, C. Brisbois, K. S. Caballero-Mora, T. Capistrán, A. Carramiñana, S. Casanova, O. Chaparro-Amaro, U. Cotti, J. Cotzomi, S. Coutiño de León, E. De la Fuente, R. Diaz Hernandez, M. A. DuVernois, M. Durocher, J. C. Díaz-Vélez, K. Engel, C. Espinoza, K. L. Fan, N. Fraija, A. Galván-Gámez, J. A. García-González, F. Garfias, M. M. González, J. A. Goodman, S. Hernandez, B. Hona, D. Huang, F. Hueyotl-Zahuantitla, T. B. Humensky, A. Iriarte, V. Joshi, S. Kaufmann, D. Kieda, G. J. Kunde, A. Lara, H. León Vargas, J. T. Linnemann, A. L. Longinotti, G. Luis-Raya, K. Malone, O. Martinez, J. Martínez-Castro, J. A. Matthews, P. Miranda-Romagnoli, E. Moreno, M. Mostafá, A. Nayerhoda, L. Nellen, R. Noriega-Papaqui, E. G. Pérez-Pérez, D. Rosa-González, E. Ruiz-Velasco, H. Salazar, D. Salazar-Gallegos, F. Salesa Greus, A. Sandoval, J. Serna-Franco, A. J. Smith, R. W. Springer, O. Tibolla, K. Tollefson, I. Torres, R. Torres-Escobedo, F. Ureña-Mena, L. Villaseñor, E. Willox, H. Zhou, C. de León, O. Fornieri, D. Gaggero, D. Grasso, A. Marinelli, S. Ventura, HAWC Collaboration   +80 more
doaj   +1 more source

Extinctions and Distances to Dark Clouds from 2MASS, MegaCam and IPHAS Surveys: LDN 1525 in the Direction of the Aur OB1 Association

Open Astronomy, 2010
The possibility of applying photometry from the 2MASS J, H, Ks, MegaCam u, g and IPHAS r, i, Hα surveys for determining the distance to the dark cloud LDN1525 (TGU 1192) in the direction of the Aur OB1 association is investigated using the red clump ...
Straižys V., Drew J. E., Laugalys V.
doaj   +1 more source

MILAN Sky Survey, a dataset of raw deep sky images captured during one year with a Stellina automated telescope. [PDF]

Data Brief, 2023
Parisot O, Hitzelberger P, Bruneau P, Krebs G, Destruel C, Vandame B.   +5 more
europepmc   +1 more source

Deep Optical Images of the Ejecta Nebula around the Wolf–Rayet Star WR 8 (HD 62910)

The Astronomical Journal
We report the results of deep H α and [O iii ] images of the bright WN6/WC4 Wolf–Rayet (WR) star WR 8 (HD 62910). These data show considerably more surrounding nebulosity than seen in prior imaging. The brighter portions of the nebula span $\simeq {6}^{{\
Robert A. Fesen, Daniel Patnaude, Wei-Hao Wang, You-Hua Chu, Jason Sun, Manuel C. Peitsch, Martin Pugh, Scott Garrod, Michael Selby, Alex Woronow   +9 more
doaj   +1 more source

PyEMILI: A New Generation Computer-aided Spectral-line Identifier. II. Emission-line Identification and Plasma Diagnostics of a Sample of Gaseous Nebulae

The Astrophysical Journal Supplement Series
In order to test the robustness and reliability of the new generation spectral-line identifier PyEMILI, as initially introduced in Paper I, in line identification and establish a reference/benchmark dataset for future spectroscopic studies, we run the ...
Zhijun Tu, Xuan Fang, Jorge García-Rojas, Robert Williams, Jifeng Liu   +4 more
doaj   +1 more source

The PHANGS-MUSE/HST-Hα nebulae catalogue

Astronomy & Astrophysics
We present the PHANGS-MUSE/HST-Hα nebulae catalogue, comprising 5177 spatially resolved nebulae across 19 nearby star-forming galaxies (D < 20 Mpc), based on high-resolution Hα imaging from HST, homogenised to a fixed (10 pc) physical resolution and ...
Barnes A. T., Chandar R., Kreckel K., Belfiore F., Pathak D., Thilker D., Leroy A. K., Groves B., Glover S. C. O., McClain R., Amiri A., Bazzi Z., Boquien M., Congiu E., Dale D. A., Egorov O. V., Emsellem E., Grasha K., Gonzalez Lobos J., Henny K., He H., Indebetouw R., Lee J. C., Li J., Liang F.-H., Larson K., Maschmann D., Meidt S. E., Eduardo Méndez-Delgado J., Neumann J., Pan H.-A., Querejeta M., Rosolowsky E., Sarbadhicary S. K., Scheuermann F., Úbeda L., Williams T. G., Weinbeck T. D., Whitmore B., Wofford A.   +39 more
doaj   +1 more source

The mystery of unidentified infrared emission bands. [PDF]

Astrophys Space Sci, 2022
Kwok S.
europepmc   +1 more source