Results 71 to 80 of about 206,857 (160)

Accreting Black Holes

, 2019
This chapter provides a general overview of the theory and observations of black holes in the Universe and on their interpretation. We briefly review the black hole classes, accretion disk models, spectral state classification, the AGN classification ...
A Heger, A Heger, A Ingram, A Lohfink, A Marinucci, A Tchekhovskoy, A Tchekhovskoy, A Zoghbi, AC Fabian, AC Fabian, AC Fabian, AK Kulkarni, AL King, AM El-Batal, AM Ghez, AM Lohfink, AR King, AR King, AR King, AR Patrick, BP Abbott, BR McNamara, C Nipoti, CE Rhoades, CM Urry, CS Reynolds, CY Chiang, DJ Walton, DJ Walton, DJ Walton, DJ Walton, DL Meier, DM Russell, DN Page, DR Pasham, E Agol, E Berti, E Gallo, E Maoz, E Nardini, EJM Colbert, F Haardt, F Haardt, FX Timmes, G Ghisellini, G Lodato, G Miniutti, G Risaliti, H Bondi, H Falcke, I Shlosman, IF Mirabel, J Casares, J Garcia, J Garcia, J Homan, J Kormendy, J Singal, JA Garcia, JA Tomsick, JA Zensus, JE Barnes, JE McClintock, JE McClintock, JE McClintock, JF Steiner, JF Steiner, JF Steiner, JF Steiner, JF Steiner, JF Steiner, JM Bardeen, JM Lattimer, JM Miller, JM Miller, JM Miller, JM Wang, K Akiyama, K Belczynski, K Gebhardt, K Gebhardt, K Mitsuda, K Ohsuga, KS Thorne, L Brenneman, L Ferrarese, L Gou, L Gou, L Gou, L Gou, L Mayer, L Stella, LC Gallo, LW Brenneman, LW Brenneman, LW Brenneman, LX Li, M Gierlinski, M Jaroszynski, M Kolehmainen, M Middleton, M Postman, M Sikora, M Volonteri, M Volonteri, M Volonteri, M Volonteri, MA Abramowicz, MA Abramowicz, MA Abramowicz, MA Abramowicz, MA Abramowicz, MA Abramowicz, MJ Reid, ML Parker, ML Parker, ML Parker, N White, NI Shakura, P Madau, PC Fragile, PD Kiel, R Fender, R Narayan, R Narayan, R Narayan, R Shafee, RA Remillard, RA Sunyaev, RA Sunyaev, RC Reis, RC Reis, RC Reis, RC Reis, RC Reis, RD Blandford, RD Blandford, RF Penna, RG Martin, RG Martin, RP Fender, RV Vasudevan, S Kumar, S Sun, SA Hughes, SC Yoon, SE Motta, SE Motta, SE Woosley, SL Shapiro, SN Zhang, T Dauser, T Fragos, T Fragos, TM Belloni, V Kalogera, VV Zhuravlev, WM Farr, Y Tan, Y Xu   +159 more
core   +1 more source

SMILES Initial Data Release: Unveiling the Obscured Universe with MIRI Multiband Imaging

The Astrophysical Journal
The James Webb Space Telescope is revolutionizing our view of the Universe through unprecedented sensitivity and resolution in the infrared, with some of the largest gains realized at its longest wavelengths.
Stacey Alberts, Jianwei Lyu, Irene Shivaei, George H. Rieke, Pablo G. Pérez-González, Nina Bonaventura, Yongda Zhu, Jakob M. Helton, Zhiyuan Ji, Jane Morrison, Brant E. Robertson, Meredith A. Stone, Yang Sun, Christina C. Williams, Christopher N. A. Willmer   +14 more
doaj   +1 more source

Fuzzy Galaxies or Cirrus? Decomposition of Galactic Cirrus in Deep Wide-field Images

The Astrophysical Journal
Diffuse Galactic cirrus, or diffuse Galactic light (DGL), can be a prominent component in the background of deep wide-field imaging surveys. The DGL provides unique insights into the physical and radiative properties of dust grains in our Milky Way, and ...
Qing Liu, Roberto Abraham, Peter G. Martin, William P. Bowman, Pieter van Dokkum, Shany Danieli, Ekta Patel, Steven R. Janssens, Zili Shen, Seery Chen, Ananthan Karunakaran, Michael A. Keim, Deborah Lokhorst, Imad Pasha, Douglas L. Welch   +14 more
doaj   +1 more source

Deep far infrared ISOPHOT survey in "Selected Area 57", I. Observations and source counts [PDF]

, 2000
We present here the results of a deep survey in a 0.4 sq.deg. blank field in Selected Area 57 conducted with the ISOPHOT instrument aboard ESAs Infrared Space Observatory (ISO) at both 60 um and 90 um.
Abraham, P., Hansen, L., Hass, M., Joergensen, H. E., Klaas, U., Lemke, D., Linden-Voernle, M. J. D., Noergaard-Nielsen, H. U., Rasmussen, I. Lundgaard, Schnopper, H. W.   +9 more
core   +1 more source

A Comparative Study of TESS Light-curve Extraction Methods Applied to Blazars

The Astrophysical Journal
Blazars are characterized by largely aperiodic variability on timescales ranging from minutes to decades across the electromagnetic spectrum. The Transiting Exoplanet Survey Satellite (TESS) mission provides continuous sampling of blazar variability on ...
Ethan Poore, Michael Carini, Ryne Dingler, Ann E. Wehrle, Paul J. Wiita   +4 more
doaj   +1 more source

Deep Learning–based Pseudocontinuum Fitting of C iv Emission-line Regions for High-quality Absorption-line Measurement

The Astrophysical Journal Supplement Series
Intrinsic associated absorption lines (AALs) in quasar spectra play a crucial role in providing insights into the chemical and physical properties of quasar outflows, host galaxies, and their surrounding interstellar medium. Affected by the complexity of
Ming-Liang Yao, Feng Wang, Ying Mei, Hui Deng, Wei-Rong Huang   +4 more
doaj   +1 more source

Reduction and analysis techniques for infrared imaging data [PDF]

Infrared detector arrays are becoming increasingly available to the astronomy community, with a number of array cameras already in use at national observatories, and others under development at many institutions.
Mccaughrean, Mark
core   +1 more source

White paper on science operations [PDF]

Major changes are taking place in the way astronomy gets done. There are continuing advances in observational capabilities across the frequency spectrum, involving both ground-based and space-based facilities.
Schreier, Ethan J.
core   +1 more source

Hardness and Approximability of Dimension Reduction on the Probability Simplex

Algorithms
Dimension reduction is a technique used to transform data from a high-dimensional space into a lower-dimensional space, aiming to retain as much of the original information as possible.
Roberto Bruno
doaj   +1 more source