| Date/Room | 23 April at 14:00 in ES606 |
| Speaker | Prof. Hidehiro Kaneda (Uir-Lab., Nagoya Univ.) |
| Title | Organic matter in space: Polycyclic Aromatic Hydrocarbons (PAHs) |
| Abstract | I will give a lecture on the fundamentals of PAHs for the members of Ta Lab. In the near- and mid-infrared wavelength range, there are many important spectral bands of dust particles such as silicates, carbonaceous grains, and ices. Among them, emission features due to polycyclic aromatic hydrocarbons (PAHs) are ubiquitously observed in the interstellar space including not only photo-dissociation regions, which are widely distributed around star-forming regions in a galaxy, but also regions of rather quiescent or even harsh interstellar environments. Their spectral inter-band ratios are known to significantly vary from galaxy to galaxy or from region to region within a galaxy, mainly depending their ionization states and/or size distributions which reflect the interstellar conditions. The profiles of the PAH features, such as peak positions and widths, also vary, providing us with information on the properties of the interstellar medium in a galaxy. In my lecture, I briefly review the observational history of PAHs since their discovery and explain how to interpret their spectral features based on our observational results obtained with Spitzer, AKARI, and JWST. |
| April | 10 | Shu-ichiro Inutsuka |
| 16 | Hiroshi Kobayashi | |
| 23 | Hidehiro Kaneda (Prof., Uir Lab., Nagoya Univ.) | |
| May | 7 | Tomotaka Nishikawa |
| 21 | Izumi Seno | |
| June | 4 | Riona Yamada |
| 18 | M2 student (TBD) | |
| 25 | M2 student (TBD) | |
| July | 2 | M2 student (TBD) |
| 9 | M2 student (TBD) | |
| 16 | M2 student (TBD) | |
| 23 | Presentation rehearsal for the summer school by M1 students |
| Date/Room | 10 April at 14:00 in ES606 |
| Speaker | Prof. Shu-ichiro Inutsuka (TA-Lab., Nagoya Univ.) |
| Title | Star Formation and The Evolution of The Galaxy |
| Abstract |
Click to expand/collapseI will briefly summarize the recent progress in our understanding of ISM dynamics and Star Formation and explain the promising directions of our future research. Those include the formation of hub-filament systems, star cluster formation with binaries, and the evolution of disk galaxies with halo-disk connection. The actual contents may depend on the questions from the audience. |
| Date/Room | 16 April at 14:00 in ES606 |
| Speaker | Assoc. Prof. Hiroshi Kobayashi (TA-Lab., Nagoya Univ.) |
| Title | Formation of Planetary Systems |
| Abstract |
Click to expand/collapsePlanets are formed in protoplanetary disks. I briefly introduce the theory of planet formation. Especially for gas giant planets, the core accretion scenario is somehow consistent with the interior structures of Jupiter and Saturn. However, core formation is impossible not only via the classical theory of planetesimal accretion but also via the recent model of pebble accretion. The total collisional evolution from dust to planets works for the core formation (Kobayashi & Tanaka 2021, 2023). This fancy theory should be confirmed through observation data of protoplanetary/debris disks and analysis of isotope anomaly of meteorites. To tackle the mission, the reconstruction of collisional model is required. I will introduce the state-of-art collisional outcome model (Kobayashi et al. 2026). |