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Using the multi-band imager MapCam onboard the OSIRIS-REx (Origins, Spectral Interpretation, Resource Identification, and Security-Regolith Explorer) spacecraft, we identified 77 instances of proposed exogenic materials distributed globally…

We analyze here a wide sample of carbonaceous chondrites from historic falls (e.g. Allende, Cold Bokkeveld, Kainsaz, Leoville, Murchison, Murray and Orgueil), and from NASA Antarctic collection in order to get clues on the role of aqueous…

Detailed chemical analyses of M dwarfs are scarce but necessary to constrain the formation environment and internal structure of planets being found around them. We present elemental abundances of 13 M dwarfs (2900 < Teff < 3500 K) observed…

We obtained spectra of six of the largest asteroids (2201, 4183, 4486, 5143, 6063, and 269690) associated with Taurid complex. The observations were made with the IRTF telescope equipped with the spectro-imager SpeX. Their taxonomic…

Earth and Planetary Astrophysics · Physics 2014-12-10 M. Popescu , M. Birlan , D. A. Nedelcu , J. Vaubaillon , C. P. Cristescu

We present the first stellar elemental abundance study for two very low-mass stars, similar in mass to TRAPPIST-1, in the $\sim5-10$\,Myr-old Upper-Sco association. Their mid-infrared JWST/MIRI spectra, like those of many very low-mass…

Solar and Stellar Astrophysics · Physics 2026-04-08 Diogo Souto , Ilaria Pascucci , Katia Cunha , Shubham Kanodia

Fomalhaut plays an important role in the study of debris disks and small bodies in other planetary systems. The proximity and luminosity of the star make key features of its debris, like the water ice-line, accessible. Here we present ALMA…

Earth and Planetary Astrophysics · Physics 2016-02-17 Kate Y. L. Su , George H. Rieke , Denis Defrere , Kuo-Song Wang , Shih-Ping Lai , David J. Wilner , Rik van Lieshout , Chin-Fei Lee

Secondary eclipse observations of exoplanets at near-infrared wavelengths enable the detection of thermal emission and reflected stellar light, providing insights into the thermal structure and aerosol composition of their atmospheres.…

We performed a wide-field survey observation of small asteroids using the Hyper Suprime-Cam installed on the 8.2 m Subaru Telescope. We detected more than 3,000 main-belt asteroids with a detection limit of 24.2 mag in the r-band, which…

Earth and Planetary Astrophysics · Physics 2021-12-08 Natsuho Maeda , Tsuyoshi Terai , Keiji Ohtsuki , Fumi Yoshida , Kosuke Ishihara , Takuto Deyama

Using the Wide Field Camera for the United Kingdom Infrared Telescope, we measure the near-infrared colors of near-Earth objects (NEOs) in order to put constraints on their taxonomic classifications. The rapid-response character of our…

Earth and Planetary Astrophysics · Physics 2016-04-06 M. Mommert , D. E. Trilling , D. Borth , R. Jedicke , N. Butler , M. Reyes-Ruiz , B. Pichardo , E. Petersen , T. Axelrod , N. Moskovitz

We present the first broadband near- to mid-infrared (3-12 microns) transmission spectrum of the highly-irradiated (T_eq = 981 K) M dwarf rocky planet L 168-9 b (TOI-134 b) observed with the NIRSpec and MIRI instruments aboard JWST. We…

NASA's OSIRIS-REx and JAXA's Hayabusa2 sample-return missions are currently on their way to encounter primitive near-Earth asteroids (101955) Bennu and (162173) Ryugu, respectively. Spectral and dynamical evidence indicates that these…

Symbiotic stars (SySt) are binaries composed of a star in the later stages of evolution and a stellar remnant. The enhanced mass-loss from the giant drives interacting mass exchange and makes these systems laboratories for understanding…

Solar and Stellar Astrophysics · Physics 2017-01-04 Cezary Galan , Joanna Mikolajewska , Kenneth H. Hinkle , Richard R. Joyce

We present a first look at the MRS observations of the nucleus of the nearby galaxy M83, taken with MIRI onboard JWST. The observations show a rich set of emission features from the ionized gas, warm molecular gas, and dust. To begin…

We present the results of observations performed with the Sardinia Radio Telescope (SRT) at 1.3-1.8 GHz of the galaxy cluster CL 0217+70 and a $3^\circ \times 3^\circ$ region around it. We combine the SRT data with archival Very Large Array…

Cosmology and Nongalactic Astrophysics · Physics 2024-12-13 P. Marchegiani , V. Vacca , F. Govoni , M. Murgia , F. Loi , L. Feretti

Context. The study of planet-crossing asteroids is of both practical and fundamental importance. As they are closer than asteroids in the Main Belt, we have access to a smaller size range, and this population frequently impacts planetary…

Earth and Planetary Astrophysics · Physics 2023-12-06 A. V. Sergeyev , B. Carry , M. Marsset , P. Pravec , D. Perna , F. E. DeMeo , V. Petropoulou , M. Lazzarin , F. La Forgia , I. Di Petro , the NEOROCKS team

High signal-to-noise spectra toward background quasars are crucial for uncovering weak absorption in the circumgalactic medium (CGM) of intervening galaxies, such as the diagnostic lines of N V that provide insight to the ionization process…

Young exoplanets are attractive targets for atmospheric characterization to explore the early phase of planetary evolution and the surrounding environment. Recent observations of the 10 Myr young Neptune-sized exoplanet K2-33b revealed that…

Earth and Planetary Astrophysics · Physics 2022-12-07 Kazumasa Ohno , Pa Chia Thao , Andrew W. Mann , Jonathan J. Fortney

The TRAPPIST-1 planetary system represents an exceptional opportunity for the atmospheric characterization of temperate terrestrial exoplanets with the upcoming James Webb Space Telescope (JWST). Assessing the potential impact of stellar…

We have carried out a high spectral resolution line survey towards the Orion Kleinmann-Low (KL) cluster from 44-188 um. The observations were taken with the Long Wavelength Spectrometer (LWS) in Fabry-Perot mode, on board the Infrared Space…

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