Search Publications
Statistical Survey of Magnetic Forces Associated With Earthward Bursty Bulk Flows Measured by MMS 2017-2021
Hamrin, M.; Karlsson, T.; Shi, Q. Q. +8 more
We investigate the magnetic forces (the magnetic pressure gradient force, the curvature force, and their sum the j × B-force) associated with earthward bursty bulk flows (BBFs) using Magnetospheric Multiscale (MMS) data from five tail seasons (2017-2021). For the first time, the magnetic forces are inferred downtail of XGSM = −20 RE and…
The Pristine survey - XXI. Exploring the metal-poor boundary with ESPaDoNS
Sestito, Federico; Martin, Nicolas; Kordopatis, Georges +10 more
In this paper, we study high-resolution spectra of 19 stars that have metallicity estimates below -3.5 using at least two metallicity-sensitive photometric indices based on Pristine photometry. The purpose is to understand what kind of stars populate this parameter space, together with extremely metal-poor stars. This because we plan to extensivel…
V907 Sco Switched to the Eclipsing Mode Again
Zasche, Petr; Barlow, Brad N.; Mašek, Martin +1 more
V907 Scorpii is a unique triple system in which the inner binary component has been reported to have switched on and off eclipses several times in modern history. In spite of its peculiarity, observational data on this system are surprisingly scarce. Here we make use of the recent Transiting Exoplanet Survey Satellite observations, as well as our …
Slow solar wind sources. High-resolution observations with a quadrature view
Teriaca, Luca; Long, David M.; Schühle, Udo +16 more
Context. The origin of the slow solar wind is still an open issue. One possibility that has been suggested is that upflows at the edge of an active region can contribute to the slow solar wind.
Aims: We aim to explain how the plasma upflows are generated, which mechanisms are responsible for them, and what the upflow region topology looks lik…
Kepler's last planet discoveries: two new planets and one single-transit candidate from K2 campaign 19
Vanderburg, Andrew; Bieryla, Allyson; Latham, David W. +9 more
The Kepler space telescope was responsible for the discovery of over 2700 confirmed exoplanets, more than half of the total number of exoplanets known today. These discoveries took place during both Kepler's primary mission, when it spent 4 yr staring at the same part of the sky, and its extended K2 mission, when a mechanical failure forced it to …
Martian Atmospheric Aerosols Composition and Distribution Retrievals During the First Martian Year of NOMAD/TGO Solar Occultation Measurements: 2. Extended Results, End of MY 34 and First Half of MY 35
Modak, Ashimananda; Brines, Adrian; Stolzenbach, Aurélien +17 more
This is the second part of Stolzenbach et al. (2023, https://doi.org/10.1029/2022JE007276), named hereafter Paper I, extends the period to the end of MY 34 and the first half of MY 35. This encompasses the end phase of the MY 34 Global Dust Storm (GDS), the MY 34 C-Storm, the Aphelion Cloud Belt (…
The DIVING3D Survey - Deep IFS View of Nuclei of Galaxies - III. Analysis of the nuclear region of the early-type galaxies of the sample
Ricci, T. V.; Steiner, J. E.; Menezes, R. B. +2 more
We analysed the nuclear region of all 56 early-type galaxies from the DIVING3D Project, which is a statistically complete sample of objects that contains all 170 galaxies in the Southern Hemisphere with B < 12.0 mag and galactic latitude |b| < 15°. Observations were performed with the Integral Field Unit of the Gemini Multi-Object…
Revealing the ionising star of evolved planetary nebulae
Werner, K.; Firpo, V.; Weidmann, W. A. +2 more
Context. Planetary nebulae represent a late stage of the evolution of stars of ordinary mass. The nucleus of a planetary nebula, a stellar remnant, is a faint star for which it is usually difficult to gather spectroscopic data. The spectral types of these stars cover a wide range, mainly separated into two large groups, those rich in hydrogen and …
The Interstellar Medium Scaling Relations Using Inner H I and an Application of Estimating Dust Mass
Lin, Zesen; Kong, Xu; Li, Fujia +4 more
We select a disk-like galaxy sample with observations of the H I, H2, and dust from the Herschel Reference Survey, and derive inner H I masses within the optical radius. We find that the inner gas-to-dust ratio is almost independent of gas-phase metallicity, and confirm that the inner gas mass (H I+H2) shows a tighter relatio…
Young Stellar Object Candidates in IC 417
Rebull, L. M.; Hall, G.; Anderson, R. L. +12 more
IC 417 is in the Galactic plane, and likely part of the Aur OB2 association; it is ~2 kpc away. Stock 8 is one of the densest cluster constituents; off of it to the east, there is a "nebulous stream" (NS) that is dramatic in the infrared (IR). We have assembled a list of literature-identified young stellar objects (YSOs), new candidate YSOs from t…