Search Publications
The statistical properties of 28 IR-bright dust-obscured galaxies and SED modelling using CIGALE
Burgarella, Denis; Frey, Sándor; Toba, Yoshiki +7 more
The aim of this study is to characterize the physical and statistical properties of a sample of infrared-bright dust-obscured galaxies (DOGs) by fitting their spectral energy distributions (SEDs). We examined 28 DOGs at redshifts 0.47 ≤ z ≤ 1.63 discovered by combining images of the Subaru Hyper Suprime-Cam (HSC) survey, the VISTA Kilo-degree Infr…
The ALPINE-ALMA [C II] survey: Investigation of 10 galaxies at z 4.5 with [O II] and [C II] line emission - ISM properties and [O II]-SFR relation
Schaerer, D.; Béthermin, M.; Boquien, M. +23 more
We present 10 main-sequence ALPINE galaxies (log (M/M⊙) = 9.2-11.1 and ${\rm SFR}=23-190\, {\rm M_{\odot }\, yr^{-1}}$) at z ~ 4.5 with optical [O II] measurements from Keck/MOSFIRE spectroscopy and Subaru/MOIRCS narrow-band imaging. This is the largest such multiwavelength sample at these redshifts, combining various measurements in th…
Connecting Chromospheric Condensation Signatures to Reconnection-driven Heating Rates in an Observed Flare
Qiu, Jiong; Longcope, Dana W.; Zhu, Chunming +1 more
Observations of solar flare reconnection at very high spatial and temporal resolution can be made indirectly at the footpoints of reconnected loops into which flare energy is deposited. The response of the lower atmosphere to this energy input includes a downward-propagating shock called chromospheric condensation, which can be observed in the UV …
The Molecular Composition of Shadowed Proto-solar Disk Midplanes Beyond the Water Snowline
Walsh, Catherine; Nomura, Hideko; Ohno, Kazumasa +3 more
The disk midplane temperature is potentially affected by the dust traps/rings. The dust depletion beyond the water snowline will cast a shadow. In this study, we adopt a detailed gas-grain chemical reaction network, and investigate the radial gas and ice abundance distributions of dominant carbon-, oxygen-, and nitrogen-bearing molecules in disks …
Chemical enrichment in the cool core of the Centaurus cluster of galaxies
Matsushita, Kyoko; Fukushima, Kotaro; Kobayashi, Shogo B.
Here, we present results from over 500 ksChandra and XMM-Newton observations of the cool core of the Centaurus cluster. We investigate the spatial distributions of the O, Mg, Si, S, Ar, Ca, Cr, Mn, Fe, and Ni abundances in the intracluster medium with CCD detectors, and those of N, O, Ne, Mg, Fe, and Ni with the Reflection Grating Spectrometer (RG…
Efficiently Imaging Accreting Protoplanets from Space: Reference Star Differential Imaging of the PDS 70 Planetary System Using the HST/WFC3 Archival PSF Library
Zhou, Yifan; Bowler, Brendan P.; Sanghi, Aniket
Accreting protoplanets provide key insights into how planets assemble from their natal protoplanetary disks. Recently, Zhou et al. (2021) used angular differential imaging (ADI) with Hubble Space Telescope's Wide Field Camera 3 (HST/WFC3) to recover the young accreting planet PDS 70 b in F656N (Hα) at a signal-to-noise ratio (S/N) of 7.9. In this …
ESO 137-002: a large spiral undergoing edge-on ram-pressure stripping with little star formation in the tail
Donahue, Megan; Combes, Françoise; Sun, Ming +11 more
Ram pressure stripping (RPS) is an important mechanism for galaxy evolution. In this work, we present results from HST and APEX observations of one RPS galaxy, ESO 137-002 in the closest rich cluster Abell 3627. The galaxy is known to host prominent X-ray and H α tails. The HST data reveal significant features indicative of RPS in the galaxy, incl…
Integrated Geostationary Solar Energetic Particle Events Catalog: GSEP
Martens, Petrus C.; Georgoulis, Manolis K.; Aydin, Berkay +1 more
We present a catalog of solar energetic particle (SEP) events covering solar cycles 22, 23 and 24. We correlate and integrate three existing catalogs based on Geostationary Operational Environmental Satellite integral proton flux data. We visually verified and labeled each event in the catalog to provide a homogenized data set. We have identified …
Infrared spectra of complex organic molecules in astronomically relevant ice mixtures. V. Methyl cyanide (acetonitrile)
Rocha, W. R. M.; Rachid, M. G.; Linnartz, H.
Context. The increasing sensitivity and resolution of ground-based telescopes have enabled the detection of gas-phase complex organic molecules (COMs) across a variety of environments. Many of the detected species are expected to form on the icy surface of interstellar grains and transfer later into the gas phase. Therefore, icy material is regard…
Determining the Timescale over Which Stellar Feedback Drives Turbulence in the Interstellar Medium: A Study of Four Nearby Dwarf Irregular Galaxies
McQuinn, Kristen B. W.; Dolphin, Andrew E.; van Zee, Liese +2 more
Stellar feedback is fundamental to the modeling of galaxy evolution, as it drives turbulence and outflows in galaxies. Understanding the timescales involved are critical for constraining the impact of stellar feedback on the interstellar medium. We analyzed the resolved star formation histories along with the spatial distribution and kinematics of…