Search Publications
Missions
Journals
Publication Years
Deciphering the hidden structures of HH 216 and Pillar IV in M16: results from JWST and HST
Dewangan, L. K.; Padovani, M.; Pandey, Rakesh +6 more
To probe the star formation process, we present an observational investigation of the Pillar IV and an ionized knot HH 216 in the Eagle Nebula (M16). Pillar IV is known to host a Class I protostar that drives a bipolar outflow. The outflow has produced the bow shock, HH 216, which is associated with the red-shifted outflow lobe. The JWST near- and…
Tidal tails of open clusters
Kos, Janez
Context. Open clusters that emerged from the star-forming regions as gravitationally bound structures are subjected to star evaporation, ejection, and tidal forces throughout the rest of their lives. Consequently, they form tidal tails that can stretch kiloparsecs along the cluster's orbit. Aims. Cluster members are typically found by searching fo…
The treasure behind the haystack: MUSE analysis of five recently discovered globular clusters
Fabbro, S.; Zoccali, M.; Rojas-Arriagada, A. +10 more
Context. After the second data release of Gaia, the number of new globular cluster candidates has increased significantly. However, most of them need to be properly characterised, both spectroscopically and photometrically, by means of radial velocities, metallicities, and deeper photometric observations.
Aims: Our goal is to provide an indep…
Revised upper limits for abundances of NH3, HCN and HC3N in the Martian atmosphere
Montmessin, F.; Korablev, O.; Fedorova, A. A. +7 more
The Atmospheric Chemistry Suite (ACS) onboard the ExoMars Trace Gas Orbiter (TGO) spacecraft has been studying Mars' atmosphere since 2018. The sensitivity of the middle infrared channel (MIR) allows it to address many ardent topics and it is capable of improving and establishing upper limits for many trace species. In this work we present analysi…
Euclid preparation: XLVI. The near-infrared background dipole experiment with Euclid
Altieri, B.; Cimatti, A.; Baccigalupi, C. +217 more
Verifying the fully kinematic nature of the long-known cosmic microwave background (CMB) dipole is of fundamental importance in cosmology. In the standard cosmological model with the Friedman–Lemaitre–Robertson–Walker (FLRW) metric from the inflationary expansion, the CMB dipole should be entirely kinematic. Any non-kinematic CMB dipole component …
Novel quantitative methods to enable multispectral identification of high-purity water ice exposures on Mars using High Resolution Imaging Science Experiment (HiRISE) images
Munaretto, G.; Dundas, C. M.; Seelos, F. P. +8 more
Reliable detection and characterization of water ice on the Martian surface is pivotal to not only understand its present and past climate, but to also provide valuable information on in-situ resource availability and distribution for future human exploration missions. Ice-rich features are currently identified with visible/near-IR (VNIR), thermal…
Exploring the dynamical evolution of Cepheid multiplicity in star clusters and its implications for B-star multiplicity at birth
Anderson, Richard I.; Kroupa, Pavel; Dinnbier, František
Context. Classical Cepheid variable stars provide a unique probe of binary evolution in intermediate-mass stars over the course of several tens to hundreds of Myr. In addition, understanding binary evolution with the inclusion of cluster dynamics is desirable for obtaining a more complete picture of these stars, especially as they play a vital rol…
The Densities in Diffuse and Translucent Molecular Clouds: Estimates from Observations of C2 and from Three-dimensional Extinction Maps
Caselli, Paola; Welty, Daniel E.; Edenhofer, Gordian +7 more
Newly computed collisional rate coefficients for the excitation of C2 in collisions with H2, presented recently by Najar & Kalugina, are significantly larger than the values adopted previously in models for the excitation of the C2 molecule, a widely used probe of the interstellar gas density. With these new ra…
Dynamics in Star-forming Cores (DiSCo): project overview and the first look towards the B1 and NGC 1333 regions in Perseus
Friesen, Rachel; Li, Zhi-Yun; Pineda, Jaime E. +13 more
The internal velocity structure within dense gaseous cores plays a crucial role in providing the initial conditions for star formation in molecular clouds. However, the kinematic properties of dense gas at core scales (~0.01-0.1 pc) has not been extensively characterized because of instrument limitations until the unique capabilities of GBT-Argus …
Studying binary systems in Omega Centauri with MUSE - I. Detection of spectroscopic binaries
Dreizler, S.; Saracino, S.; Latour, M. +6 more
NGC 5139 (