Results 41 to 50 of about 419,985 (168)

Notional Geological Traverses, Station Activities, and Sample Collection on Mons Malapert, Lunar South Polar Region

Journal of Geophysical Research: Planets, Volume 130, Issue 7, July 2025.
Abstract The geology of a potential Artemis landing site on Mons Malapert is examined using remote sensing techniques and lessons learned from Apollo missions to the lunar surface. Orthomosaics, digital terrain models, illumination models, thermal conditions, crater size‐frequency distribution analyses, geomorphological mapping, spectral and ...
David A. Kring, Amy L. Fagan, Valentin T. Bickel, Ariel N. Deutsch, Lisa R. Gaddis, Juliane Gross, Harald Hiesinger, Therese M. Huning, José M. Hurtado Jr., Wajiha Iqbal, Katherine H. Joy, Laszlo Keszthelyi, Myriam Lemelin, Chris A. Looper, José M. Martínez‐Camacho, Gordon R. Osinski, Eloy Peña‐Asensio, Nico Schmedemann, Matthew A. Siegler, Sonia M. Tikoo, Carolyn H. van der Bogert, Kris Zacny   +21 more
wiley   +1 more source

Foreground Dust Properties toward the Cluster NGC 7380

The Astronomical Journal
Using starlight polarization, we present the properties of foreground dust toward cluster NGC 7380 embedded in H ii region Sh 2-142. Observations of starlight polarization are carried out in four filters using an imaging polarimeter equipped with a 104 ...
Sadhana Singh, Jeewan C. Pandey, Thiem Hoang, Neelam Panwar, Biman J. Medhi, Vishal Joshi, Shashikiran Ganesh   +6 more
doaj   +1 more source

Iron Deficiency Impairs Dendritic Cell Development and Function, Compromising Host Anti‐Infection Capacity

Advanced Science, Volume 12, Issue 20, May 29, 2025.
Iron deficiency reduces monocyte dendritic cell progenitor (MDP) numbers by inhibiting migration and proliferation while promoting apoptosis, subsequently reducing downstream common dendritic cell precursors (CDP) and dendritic cell (DC). Impaired DCs enter the lungs via blood circulation, where reduced antigen presentation impairs T‐cell activation ...
Quanzhong Ren, Xiaotong Xu, Zheng Dong, Jiahuang Qiu, Qing'e Shan, Rui Chen, Yajun Liu, Juan Ma, Sijin Liu   +8 more
wiley   +1 more source

Starlight Cover

, 1990
The front page of Starlight with an image that has Ford in ...
Starlight
core   +1 more source

Automatic Detection and Feature Extraction of Equatorial Plasma Bubbles From All‐Sky Airglow Image Based on Machine Learning

Space Weather, Volume 23, Issue 5, May 2025.
Abstract We developed a deep convolutional neural network‐based program code that automatically detects equatorial plasma bubbles (EPBs), segments EPB morphologies, and then extracts their features (including EPBs' northernmost foot latitudes and zonal drift velocities) from OI 630 nm airglow images.
Jia Zhong, Ziming Zou, Kun Wu, Jiyao Xu, Yang Lu, Longchang Sun, Qinzeng Li, Wei Yuan   +7 more
wiley   +1 more source

A Decade of Linear and Circular Polarimetry with the POLISH2 Polarimeter

The Astrophysical Journal Supplement Series, 2023
The POLISH2 optical polarimeter has been in operation at the Lick Observatory 3 m Shane telescope since 2011, and it was commissioned at the Gemini North 8 m in 2016.
Sloane J. Wiktorowicz, Agnieszka Słowikowska, Larissa A. Nofi, Nicole Rider, Angie Wolfgang, Ninos Hermis, Daniel Jontof-Hutter, Amanda J. Bayless, Gary M. Cole, Kirk B. Crawford, Valeri V. Tsarev, Michael C. Owens, Ernest G. Jaramillo, Geoffrey A. Maul, James R. Graham, Maxwell A. Millar-Blanchaer, Kimberly Bott, Jon C. Mauerhan   +17 more
doaj   +1 more source

Sensitivity of Polarization to Grain Shape. II. Aggregates

The Astrophysical Journal
A previous study (Paper I) investigated the polarization properties of a variety of simple convex grain shapes, some of which were found to be consistent with the observed polarization properties of interstellar dust from far-ultraviolet to far-infrared.
B. T. Draine
doaj   +1 more source

MoonShine: A software‐hardware system for simulating moonlight ground illuminance and re‐creating artificial moonlight cycles in a laboratory environment

Methods in Ecology and Evolution, Volume 15, Issue 4, Page 701-715, April 2024.
Abstract Moonlight exerts profound ecological, behavioural and physiological effects on animals. However, lunar cycles are characterised by complex changes in the illuminance and timing of illumination, making it challenging to re‐create and manipulate moonlight cycles in the laboratory using artificial lights.
Lok Poon, Ian T. Jenks, W. G. R. Crampton   +2 more
wiley   +1 more source

HabEx polarization ray trace and aberration analysis

, 2018
The flux difference between a terrestrial exoplanet and a much brighter nearby star creates an enormous optical design challenge for space-based imaging systems.
Kupinski, Meredith K., Meredith K. Kupinski, James B. Breckinridge, Breckinridge, James B., Russell A. Chipman, Chipman, Russell A., Davis, Jeffrey, Jeffrey Davis   +7 more
core   +1 more source

Magnetic Field of a Ring-like Molecular Cloud

The Astronomical Journal
We present a detailed study of the magnetic field structure in the G111 molecular cloud, a ring-like filamentary cloud within the NGC 7538 region. Our analysis combines multiwavelength polarization data and molecular-line observations to investigate the ...
Dana Alina, Adel Umirbayeva, Yasuo Doi, Soichiro Jo, Yue Hu, Alex Lazarian, Janik Karoly, Tie Liu, Koji S. Kawabata, Alua Mukhash, Danial Zhumagayir, Tomori Hori, Tetsuharu Maruta, Ryo Imazawa, Tatsuya Nakaoka, Mahito Sasada   +15 more
doaj   +1 more source