Infraredastronomy - The Research Garden
More Posts from Infraredastronomy and Others
Lake Kennedy (fishing spot) in Tucson, Arizona. When I went to check it out there was a fishing competition going on so everyone was quiet and focused. It was lovely seeing turtles, ducks, birds and dragonflies.
Images of the Milky Way's galactic center in the mid-infrared.
Left: Image from Becklin and Neugebaur 1975
Right: Image from Dinh+ 2024
Despite not knowing alot about galaxies, I was absolutely blown away by all of the defined structure in the image on the right. During department tea time this week some colleagues were talking about their favorite papers that are older than themselves. I went back to my personal favorite, Infrared Observations of the Galactic Center (Becklin+ 1968) and checked out similar papers from the time. I came across a very old image of the inner parsec region shown on the right.
LBT/NOMIC spectroscopy
NOMIC is one of the infrared cameras within the Large Binocular Telescope Interferometer. It is primarily used to take images at 8-13 microns. When NOMIC was built, a low resolution grism was installed within one of the filter wheels. Last Fall I was finally able to test it on sky to see how it performed. Lambda Persei is a relatively bright star with a spectral type of A0, similar to Vega. The NOMIC spectrum of Lambda Persei is shown in blue with black error bars. A spectrum of Vega from Rieke+ 2008 is shown in red. They match pretty well besides the region between 9.5 and 10 microns. This is likely due to the telluric calibrator star being observed at a very different air mass than the target. Getting a good telluric calibrator beyond 8 microns is very challenging for ground-based observations. A significant chunk of stars are too dim to get high signal-to-noise in a short period of time relative to the time required for science observations.
Reflections
I'm mentoring an undergrad for the first time and I'm realizing more how much effort it takes to start someone on research from scratch. Its so different from how classes work there is really no script to it. We are working on studying Hubble observations of Jupiter from 2015 to now. At the moment most variability measurements of gas giant exoplanets or brown dwarfs are only over one or two rotation periods. We need to move from "weather" into long-term climate observations, which is possible with a small observatory in space. Using Jupiter and current brown dwarf data, we can estimate what sensitivity is needed.
I've been gaming a lot less lately. I reached Platinum 4 in League of Legends, which is much higher than my original goal this season. There is no point in practicing because the whole map will change in January. I also have some JWST Observations that got executed today and LBTI observations to plan for in December and January.
I take my driving test tomorrow!!!!!!!!!!!!
