Video transcript of meeting
Fuelling Galactic Powerhouses – Dr. Mallory Thorp
- Mallory is a postdoctoral researcher the Argelander-Institut für Astronomie (AIfA) at the University of Bonn; MSc & PhD at UVic
- Hubble Deep Field – how do all those galaxies interact with each other?
- Spitzer Infrared Nearby Galaxies Survey (SINGS)
- Galaxy Zoo – internals to galaxies
- Baryon Cycle – gas, dust, stars
- Inter-stellar Medium – gas and star formation
- Sloan Digital Sky Survey
- huge number of galaxies
- great for big picture studies
- Phangs – high resolution studies of individual galaxies covering the complete Baryon Cycle
- Uses multiple telescopes for source data, including both space and ground telescopes – ALMA, JWST, HST, MUSE
- NGC 628 / M74
- Voids in the galaxy – biggest is The Phantom Void (1kpc across)
- Recently formed stars on the edge of voids at these “shock fronts”
- How stars form has now been observed, thanks to JWST
- Out of 74 galaxies only a dozen are mergers
- NGC 3637 – example merger galaxy
- Catastrophic events impact interstellar medium
- Strong star formation when the galactic structure is essentially destroyed
- Active Galactic Nucleus (AGN) – eventual result of interaction between galaxies
- Jets of gas leave the galaxy
- AGN is likely responsible for star formation
- Galaxies turn off – why?
- Try to reconstruct an interaction of galaxies over billions of years
- ALMaQUEST – ALMA MaNGA Quenching & Star-Formation Survey
- How mergers power starbursts?
- Extra stars and extra gas
- Studying post-merged galaxies
- How do mergers trigger the birth of new stars?
- AGN or starbursts when fuel is pulled into the centre of a galaxy
- Q&A
Resumption of monthly meetings and speakers at UVic – Reg Dunkley
- NEW EARTH Lab – Find Life on Exoplanets | RASC Victoria – Dr. Christian Marois, NRC, UVic
- Oct 11th 7:30PM at Bob Wright Centre, Room A104, University of Victoria
- Meeting will not be streamed, so please attend in-person
- After the meeting, adjourn to the Elliott Building 4th floor Astronomy lounge for coffee, cookies and discussion
- Lauri will have solar eclipse glasses to give to members
Annular Solar Eclipse – Oct 14, 2023 – Lauri Roche & David Lee
- Solar Eclipse 2023 — Annular Eclipse, October 14 – Time & Date info page
- Start: 8:03AM PDT
- Maximum: 11:00AM PDT
- End: 1:56PM PDT
- Event at the Centre of the Universe
- Observe the eclipse
- Breakfast snacks supplied
- Kids activities
- Vignette talks
- Event tickets on sale from FDAO through Eventbrite
- Solar telescopes – dependant on RASC volunteers
- Will supply solar eclipse glasses to attendees and other people hosting events can come to pick up the glasses
- Best observing spot will likely be from the lower parking lot, not the Plaskett or Centre of the Universe parking lot
- For observing yourself from other locations, seek a site with visibility to the east, low in the sky
- Use solar eclipse glasses to directly observe the Sun, or use telescopes or binoculars with solar filters
- Practice ahead of time
- Discussion about timing and observing
- Solar Eclipse Eye Safety – American Academy of Ophthalmology
- RASC National 2023 calendars – Lauri has ordered 35 calendars, so contact her to sign up for a copy – roche.lauri@gmail.com
Victoria Centre Observatory (VCO) report – David Lee
- 20″ Obsession – guiding working, collimation is near-perfect
- 12″ Dobsonian also available
- Takahashi – available to members for photography and visual observing
- Discussion about parking issue at VCO – Garry Sedun
Astrophotos – Dave Payne
- SH2-157 Lobster Claw nebula in narrowband
- Shrimp nebula
- Heart Nebula and beyond
Oct 16th is the next time to attend Astronomy Cafe – in two week’s time.