Results 21 to 30 of about 2,349 (186)

Composition of Giants 1° North of the Galactic Center: Detailed Abundance Trends for 21 Elements Observed with IGRINS

The Astrophysical Journal
We report the first high-resolution, detailed abundances of 21 elements for giants in the Galactic bulge/bar within 1° of the Galactic plane, where high extinction has rendered such studies challenging. Our high-signal-to-noise-ratio and high-resolution,
Govind Nandakumar, Nils Ryde, Gregory Mace, Kyle F. Kaplan, Niels Nieuwmunster, Daniel Jaffe, R. Michael Rich, Mathias Schultheis, Oscar Agertz, Eric Andersson, Christopher Sneden, Emily Strickland, Brian Thorsbro   +12 more
doaj   +1 more source

Characterization of a Lava Plain NW of Ascraeus Mons, Mars, Through Surface Morphometric Analyses and SHARAD Subsurface Detections

Journal of Geophysical Research: Planets, Volume 131, Issue 1, January 2026.
Abstract The Martian lava plains are characterized by their extensive, low‐relief surfaces, which are the result of numerous basaltic eruptions and feature a variety of volcanic landforms, including vents, cones, pits, and skylights. The combination of these features and impact craters yields a significant understanding of the planet's geological past ...
G. Nodjoumi, S. E. Lauro, M. Valiante, E. Luzzi, A. P. Rossi   +4 more
wiley   +1 more source

A Near-infrared Extinction and Reddening Map toward the Galactic Bulge Using UKIRT

The Astronomical Journal
The Galactic bulge is one of the most information-dense regions to study resolved stellar populations, variables, and transients, such as microlensing events.
Aiden S. Zelakiewicz, Samson A. Johnson, B. Scott Gaudi, Geoffrey Bryden, David M. Nataf, Yossi Shvartzvald   +5 more
doaj   +1 more source

Structure of Jupiter's High‐Latitude Storms: Folded Filamentary Regions Revealed by Juno

Journal of Geophysical Research: Planets, Volume 131, Issue 1, January 2026.
Abstract Sprawling, turbulent cloud formations dominate the meteorology of Jupiter's mid‐to‐high latitudes, known as Folded Filamentary Regions (FFRs). A multi‐wavelength characterization by Juno reveals the spatial distribution, vertical structure, and energetics of the FFRs.
L. N. Fletcher, Z. Zhang, S. Brown, F. A. Oyafuso, J. H. Rogers, M. H. Wong, A. Mura, G. Eichstädt, G. S. Orton, S. Brueshaber, R. Sankar, C. Li, S. M. Levin, F. Biagiotti, T. Guillot, A. P. Ingersoll, D. Grassi, C. J. Hansen, S. Bolton, J. H. Waite   +19 more
wiley   +1 more source

The Structure, Populations, and Kinematics of the Milky Way Central and Inner Bulge with OGLE, APOGEE, and Gaia Data

The Astrophysical Journal
We present an analysis of the structure, kinematics, and chemo-dynamical properties of the Milky Way bulge using RR Lyrae stars from Optical Gravitational Lensing Experiment (OGLE), and giant stars from APOGEE and Gaia that have distances placing them in
Xiao Han, Hai-Feng Wang, Giovanni Carraro, Martín López-Corredoira, Yuan-Sen Ting, Yang-Ping Luo, Guan-Yu Wang, (MWLUDPSG Collaboration)   +7 more
doaj   +1 more source

Blazhko modulation in first-overtone RR Lyrae stars from the OGLE Collection

EPJ Web of Conferences, 2017
We present results of the first comprehensive study of the Blazhko effect in first-overtone RR Lyrae stars from the Galactic bulge based on the Optical Gravitational Lensing Experiment data.
Netzel Henryka, Smolec Radoslaw, Soszński Igor   +2 more
doaj   +1 more source

The Human Remains From the MIS 6 Site of Grotta Del Poggio (Cilento, Southern Italy): A Taxonomic and Chronological Reassessment

American Journal of Biological Anthropology, Volume 188, Issue 4, December 2025.
ABSTRACT Objectives Grotta del Poggio is a key site for exploring the Middle Paleolithic in southern Italy, as it contains a pivotal anthropogenic deposit, mainly attributed to MIS 6, while in the Metal Ages, the cavity was used as a burial place. Excavations in the cave's deposit led to the discovery of a human molar and a human talus.
Erica Piccirilli, Rita Sorrentino, Francesca Seghi, Antonino Vazzana, Maria Giovanna Belcastro, Sahra Talamo, Katerina Harvati, Matteo Bettuzzi, Maria Pia Morigi, Gerhard Weber, Giulia Capecchi, Vincenzo Spagnolo, Ivan Martini, Adriana Moroni, Francesco Boschin, Stefano Ricci, Stefano Benazzi   +16 more
wiley   +1 more source

Elemental abundances in AGB stars and the formation of the Galactic bulge

EPJ Web of Conferences, 2012
We obtained high-resolution near-IR spectra of 45 AGB stars located in the Galactic bulge. The aim of the project is to determine key elemental abundances in these stars to help constrain the formation history of the bulge.
Wood P.R., Ryde N., Lebzelter T., Blommaert J.A.D.L., Uttenthaler S., Schultheis M., Aringer B.   +6 more
doaj   +1 more source

When the Stars Align: A 5σ Concordance of Planetary Nebulae Major Axes in the Center of Our Galaxy

The Astrophysical Journal Letters, 2023
We report observations of a remarkable major axes alignment nearly parallel to the Galactic plane of 5 σ significance for a subset of bulge “planetary nebulae” (PNe) that host, or are inferred to host, short-period binaries. Nearly all are bipolar. It is
Shuyu Tan, Quentin A. Parker, Albert A. Zijlstra, Andreas Ritter, Bryan Rees   +4 more
doaj   +1 more source

Detailed α abundance trends in the inner Galactic bulge [PDF]

, 2023
Niels Nieuwmunster, Govind Nandakumar, E. Spitoni, N. Ryde, M. Schultheis, R. Michael Rich, P. S. Barklem, Oscar Agertz, Florent Renaud, F. Matteuccí   +9 more
openalex   +1 more source