-
James Urquhart (University of Kent)8/19/25, 9:00 AMInvited talk
Over the past two decades, there has been a major international effort to create high-resolution, multi-wavelength maps of the Galactic plane. These surveys span radio, submillimetre, and near-infrared wavelengths from ground-based observatories, as well as mid- and far-infrared wavelengths from space-based missions (e.g., SPITZER, HERSHEL).
The APEX telescope has played a central role in...
Go to contribution page -
Mark Reid (Center for Astrophysics | Harvard & Smithsonian)8/19/25, 9:40 AMContributed talk
The Bar and Spiral Structure Legacy (BeSSeL) Survey has yielded
Go to contribution page
about 200 parallax and proper motion measurements of masers
associated with young massive stars. Recently the use of
3-dimensional kinematic distances, in addition to parallaxes,
have significantly improved the locations of stars more distant
than about 5 kpc, leading to a more accurate tracing of the
spiral structure of... -
Michael Rugel (NRAO)8/19/25, 10:30 AMContributed talk
Over the past decades, our understanding of the Milky Way’s large-scale spiral structure has significantly improved through parallax maser distance measurements. The locations and the morphology of the Outer and Outer-Scutum-Centaurus arms, however, remain poorly constrained. As an extension to the BeSSeL survey, we measure parallaxes of water masers at 22 GHz in high-mass star forming regions...
Go to contribution page -
Ye Xu (中国科学院紫金山天文台)8/19/25, 10:50 AMContributed talk
The Galactic structure has been a fundamental and longstanding challenge in astronomy. Over the past two decades, advancements in accurate distance measurements have provided an unprecedented opportunity to address this issue. Using the most reliable data available, we developed a new model of the Milky Way’s spiral arm structure (Xu+2023). This model suggests that the Milky Way features two...
Go to contribution page -
Jingjing Li (PMO)8/19/25, 11:10 AMContributed talk
The structure and evolution of the spiral arms of the Milky Way have long been an important yet controversial issue. The wide age range of OB-type stars, coupled with the large amount of high-precision astrometric data provided by Gaia DR3, presents us with an opportunity to explore this issue. After constructing overdensity maps and examining the variations of overdensities with...
Go to contribution page -
Gisela Ortiz-Leon (Instituto Nacional de Astrofisica, Optica y Electronica)8/19/25, 1:00 PMInvited talk
The Global View of Star Formation in the Milky Way (GLOSTAR) project is a large, unbiased and sensitive radio-wavelength survey mapping a significant part of the Galactic mid-plane. Using the Very Large Array in both the B and D configurations and the 100-m Effelsberg telescope, GLOSTAR observed the 4–8 GHz radio continuum and several spectral lines: seven hydrogen radio recombination lines...
Go to contribution page -
Peter Schilke (University of Cologne)8/19/25, 1:40 PMContributed talk
The Large ALMA Program ALMAGAL observed more than 1000 high-mass cluster forming regions in the Galaxy with a spatial resolution of about 1000 au. I will present the first results from it, concentrating on the characterization of the temperature structures. At these resolutions, it is not straightforward any more to use established techniques such a single component fitting of lines. ...
Go to contribution page -
Nirupam Roy (Indian Institute of Science)8/19/25, 2:00 PMInvited talk
Low radio frequency observations are extremely useful to study the properties of various components (e.g. diffuse multi-phase ISM, star-forming regions, HII regions, photo-dissociation regions, supernova remnants) of the interstellar medium. The recent upgrade of the Giant Metrewave Radio Telescope has resulted in an enhanced sensitivity over a wider accessible frequency range, larger...
Go to contribution page -
Yan Gong (Purple Moutain observatory)8/19/25, 3:20 PMContributed talk
Metal enrichment is a fundamental tracer of stellar nucleosynthesis, stellar populations, and galactic chemical evolution. While extensively studied in the Milky Way, its role in metal-poor galaxies remains largely unexplored. The Magellanic Clouds, as nearby low-metallicity systems, provide a unique opportunity to investigate these processes under conditions analogous to those in...
Go to contribution page -
Konstantin Grishunin (MPIfR)8/19/25, 3:40 PMContributed talk
The Large Magellanic Cloud (LMC) is a unique laboratory for extragalactic studies of star formation. From 2019 to the end of 2023, we observed the LMC in the 12CO(3–2) and 13CO(3–2) lines with the APEX telescope. In total, the resulting survey covered 23.4 sq. deg. (17.8 pc^2) of the LMC disk at a spatial resolution of 5 pc. The derived map of the molecular gas distribution is unpreceded in...
Go to contribution page -
Carsten Kramer (IRAM)8/19/25, 4:00 PMContributed talk
I will present new results from IMEGIN, a large program conducted with
Go to contribution page
the IRAM 30-meter telescope aimed at mapping the continuum emission of
nearby galaxies at 1 mm and 2 mm using the NIKA2 camera. The
millimeter regime remains one of the least explored regions of a
galaxy's spectral energy distribution (SED), yet it hosts crucial
emission from three fundamental physical processes:... -
Veselina Kalinova (Max Planck Institute for Radioastronomy)8/19/25, 4:20 PMContributed talk
The mechanisms that lead galaxies to strongly reduce their star formation activity (star-formation quenching) are complex and still poorly understood. To address this challenge, we developed a new star-formation quenching classification scheme based on the ionised gas distribution in galaxies. The classification suggests a more detailed understanding of the galaxy quenching process by focusing...
Go to contribution page -
Poster
Studies of Galactic HII regions are crucial for understanding star formation and the evolution of the interstellar medium (ISM). Gaining insight into their physical characteristics and environment contributes to a more comprehensive understanding of these phenomena. In recent years, our view of massive star-forming regions has dramatically changed due to Galactic plane surveys covering...
Go to contribution page -
-
Poster
Aim: The spatial distribution of giant molecular clouds (GMCs) encodes key information about the physics that regulates the cloud formation and collapse, yet remains poorly studied on a large sample of galaxies. In this study, we present comprehensive statistical analyses on molecular gas structure down to GMC scales using a sample of 8894 GMCs from 40 PHANGS-ALMA galaxies -- the largest...
Go to contribution page -
Poster
We investigate magnetic fields in the Milky Way using data from the GLObal view on STAR formation (GLOSTAR) survey, focusing on the Faraday effect — quantified by rotation measures (RM) toward background polarized radio sources. This study aims to construct the first C-band RM grid. The C-band’s small channel width in wavelength squared ($\thicksim$1.5 to 5 cm$^2$) is ideal for identifying...
Go to contribution page -
Poster
We present the full GLOSTAR-VLA D-configuration catalog of radio sources, the most sensitive and comprehensive catalog of the Galactic plane at 5.8 GHz to date. Covering 116 square degrees (2°<ℓ<60°, |b|<1°) with unprecedented sensitivity (~60-123 µJy/beam) and resolution (~18"), the catalog contain over 12,981 radio sources, including hundreds of newly identified H II region candidates, young...
Go to contribution page -
Poster
OGHReS (Outer Galaxy High Resolution Survey) is a large scale (100 deg2) molecular line APEX legacy survey of the outer Galaxy. The main aims of the survey are to investigate star formation in the outer Galaxy and constrain the large scale structure and dynamics of the Milky Way.
Go to contribution page
Here we present an overview of the survey and the progress of the scientific exploitation so far.
Choose timezone
Your profile timezone: