Results 31 to 40 of about 7,431,143 (302)
The Astrophysical JournalWe present photometric selection of type 1 quasars in the ≈5.3 deg ^2 XMM-Large Scale Structure survey field with machine learning. We constructed our training and blind-test samples using spectroscopically identified Sloan Digital Sky Survey quasars ...
Jian Huang +6 more
doaj +1 more source
Surveys of X-Ray Sources [PDF]
Highlights of Astronomy, 1968 My assignment this afternoon is to review briefly the status of the observational work that has been accomplished since the last IAU discussion of X-ray astronomy which took place at the Liege Symposium 3 years ago. Essentially, the methods of observation have not changed in any significant way.
openaire +1 more source
FEBS Letters, EarlyView.CT10 regulator of kinase (CRK) and CRK‐Like (CRKL) are signaling adaptors driving cell adhesion, motility, differentiation, and proliferation. SH2‐domain containing (SH) proteins are enriched in YXXP motifs which when phosphorylated create preferred binding sites for CRK family SH2 domains.
Phoebe M. Cousens +8 more
wiley +1 more source
The NH Distribution of Hard X-Ray Selected Active Galactic Nuclei in the NEP Field
The Astrophysical JournalX-ray surveys are one of the most unbiased methods for detecting Compton-thick (CT; N _H ≥ 10 ^24 cm ^−2 ) active galactic nuclei (AGN), which are thought to comprise up to 60% of AGN within z ≲ 1.0.
Samantha Creech +11 more
doaj +1 more source
Future Perspectives for Gamma-ray Burst Detection from Space
UniverseSince their first discovery in the late 1960s, gamma-ray bursts have attracted an exponentially growing interest from the international community due to their central role in the most highly debated open questions of the modern research of astronomy ...
Enrico Bozzo +37 more
doaj +1 more source
The Future of X-Ray Time-Domain Surveys [PDF]
Proceedings of the International Astronomical Union, 2011 AbstractModern X-ray observatories yield unique insight into the astrophysical time domain. Each X-ray photon can be assigned an arrival time, an energy and a sky position, yielding sensitive, energy-dependent light curves and enabling time-resolved spectra down to millisecond time-scales. Combining those with multiple views of the same patch of sky (e.
Haggard, Daryl, Sivakoff, Gregory R.
openaire +2 more sources
Conserved binding mode but diverse interfaces of MreC‐PBP2 interactions
FEBS Letters, EarlyView.The crystal structure of abMreC reveals a conserved two β‐barrel architecture and provides structural insights into its role within the bacterial elongasome. The abMreC–abPBP2 complex model identifies the molecular basis of MreC‐mediated PBP2 recognition, contributing to the regulation of peptidoglycan synthesis.
Hyunseok Jang +4 more
wiley +1 more source
, 2016 I will summarize the most relevant achievements of the ultra deep XMM survey in the Chandra Deep Field South and the lessons learned for the planning of future X-ray ...
COMASTRI, Andrea
core
Cosmic X-ray surveys of active galactic nuclei: The synergy between X-ray and infrared observations
, 2017 We briefly review the synergy between X-ray and infrared observations for active galactic nuclei (AGNs) detected in cosmic X-ray surveys, primarily with XMM-Newton, Chandra, and NuSTAR. We focus on two complementary aspects of this X-ray–infrared synergy:
D. M. Alexander, Alexander, D.M.
core +1 more source
High-resolution imaging of soil colloids in aqueous media with a compact soft X-ray microscope
, 2022 Colloids play an important role when describing parameters of and processes within soils, sediments or aquifers due to their abundance and their high specific surface area. It is of great importance to visualize the morphology of the structures formed by
Gleber, Sophie-Charlotte +13 more
core +2 more sources