Starting on February 4th, 2015, the Van Vleck Observatory at Wesleyan University will be opening its doors to the public every Wednesday night, rain or shine, for a series of space nights. Come talk to students and faculty about the latest space-related discoveries by scientists at Wesleyan and around the world. For the spring semester, the events will start at 8pm, beginning with a half-hour interactive presentation by students and/or faculty, followed by a chance for everyone to see the sky through Wesleyan’s telescopes (weather permitting). Presentations are intended to be accessible to visitors of all ages, although aimed primarily at high school level and above. A series of monthly kids’ nights is in the works as well. For more information and a schedule of events, check out the Astronomy department website at www.wesleyan.edu/astro/events or follow us on Twitter at @WesAstro .
To stay informed about all the latest Astronomy events at Wesleyan, sign up for our mailing list here: http://goo.gl/forms/mywuNrT0Nh
The dust has settled and restoration work for the summer is nearly complete. Our two excellent summer students, Becca Hanschell (’16) and Julian Dann (’17), spent 10 weeks disassembling, cleaning, and painting under the supervision of antique telescope expert Fred Orthlieb. You can see pictures and lots of time-lapse video on our twitter feed and youtube channel.
As of August 9, both axles and the OTA joiner have been remounted on the telescope pier. Almost all of the cleaning and painting has been done. We have sourced the parts for the new drives and telescope control system and will be acquiring those over the coming months. This is a time of careful thought as we design, build, and acquire new parts. We’re designing the system with the goal of another century or more of operation.
In the coming weeks, we will be announcing details about the VVO Centennial Celebration. Stay tuned!
We are pleased to announce that the historic Van Vleck Observatory 20″ Alvan Clark refractor is undergoing an extensive restoration project in anticipation of the Centennial of VVO, which we will be celebrating throughout the 2015-16 academic year. Stay tuned for more details about that soon.
For a description of the restoration, see the links below. The best way to keep up to date is to follow us on twitter: @WesAstro. We’re posting pictures and frequent updates. We’re also posting daily time-lapse videos of the restoration to our YouTube channel.
Every year, the Astronomy Department is lucky enough to host a prestigious member of the astronomical community for a day or two of astronomical events. The events are centered around a public lecture which draws hundreds of attendees each year. This year, we are thrilled to welcome Professor Meg Urry from Yale and President-elect of the American Astronomical Society. You can read a bit more about her public talk at the Sturm Lecture page. There will be multiple opportunities to hear Professor Urry speak over the next couple of days, and we hope you will join us for some (or all!) of them.
Wednesday, 4/2, 4pm, in Exley 058
WesWIS/Astro talk: “Women in Science: Why so Few?” Click for Event Details
Wednesday, 4/2, 8pm in CFA Hall
Sturm Lecture: “Black Holes, Galaxies, and the Evolution of the Universe” Click for Event Details
Thursday, 4/3, 12pm in Woodhead Lounge
The Center for Faculty Career Development will host a conversation with Prof. Urry about inclusive pedagogy in the sciences. This event is open to faculty, post-docs, and grad students.
Email: cfcd@wes for details.
Thursday, 4/3, 4pm in VVO 110
Astro Colloquium: “The Co-Evolution of Black Holes and Galaxies over Cosmic Time” Click for Event Details
Attendees at the 24th Annual Undergraduate Research Symposium of the Keck Northeast Astronomy Consortium.
Wesleyan astronomy students and faculty traveled to Vassar College for the 24th Annual Undergraduate Research Symposium of the Keck Northeast Astronomy Consortium (KNAC), held on October 25 and 26, 2013. About 85 astronomy faculty and students attended the one-day symposium, listening to talks by students at our institutions who did summer research projects in astronomy. KNAC is currently supported by an NSF grant to Wesleyan University. Member colleges are: Colgate, Haverford, Middlebury, Swarthmore, Vassar, Wellesley, Wesleyan and Williams.
In addition to the talks, we enjoyed a dinner and evening star party hosted at the Vassar College Observatory. Student speakers from Wesleyan were Junior Trevor Dorn-Wallenstein and Sophomore Jesse Tarnas. Also attending from Wesleyan were: Suwun Suwunnarat, Avram Stein, Girish Duvvurl, Maia Neiles-Sager, Julian Dann and Simon Wright, as well as Professors William Herbst, Meredith Hughes, Roy Kilgard and Seth Redfield.
The student speakers at the KNAC conference at Vassar.
Jesse Tarnas presents his research done under the direction of Professor Seth Redfield. He is searching for planets orbiting white dwarf stars.Trevor Dorn-Wallenstein presents the results of his research with Professors Ed Moran and Roy Kilgard. The title of his presentation was: “X-ray Fibrillation in the Heart of NGC 4395”.Some of the Wesleyan students attending the conference at Vassar.
Also presenting at the conference were KNAC students who worked at Wesleyan last summer, doing research under the direction of Wesleyan faculty. Four students from last summer gave talks. They were: Frankie Encalada from Broward College, who worked with Professor Meredith Hughes, Rachel Pedersen from Bates College who worked with Professor Bill Herbst, Alyssa Sokol from Colgate University who worked with Post-doc Adam Jensen and Estella de Souza from Bryn Mawr College who worked with Professor Seth Redfield. Will Harney of Union College presented a poster paper based on his summer research with Professor Meredith Hughes.
Estella de Souza of Bryn Mawr College presents her research “Using Kepler Data to Identify Possible Atmospheric Features in Exoplanets” done at Wesleyan under the direction of Seth Redfield.Frankie Encalada of Broward College presents his research entitled “An Investigation of the Circumstellar Disk around TYC-4496-780-1” done under the direction of Meredith Hughes.Alyssa Sokol of Colgate presents her research entitled “Gas Phase Silicon in the Interstellar Medium” done under the direction of Adam Jensen.
Rachel Pedersen of Bates College reports on her research concerning the Herbig Ae/Be Star T Ori. Her advisor was Bill Herbst.Summer 2013 at the Observatory.
Last night the Introductory Astronomy (ASTR155) class took over the CCD imager on the 24″ telescope. We checked out a colorful binary star system, Albireo, through different filters and saw the stars change their relative brightnesses as we switched from blue light to red light (one star is redder and the other is bluer, because they are different temperatures). We also tried some 3-color observing with famous Messier objects, and were able to reconstruct a full-color image of the Ring Nebula. Here are two pictures from last night’s observing session: the first uses B, V, and R filters to approximate a true-color RGB image of the nebula, and the second uses a narrow-band Halpha filter to bring out the red color and structure of Hydrogen in the outer layers of the nebula (which works great, but with the unfortunate side effect that the background stars look blue!)
Periodically, telescopes need to have their mirrors cleaned and coated with a new layer of shiny aluminum. Here are some photos of the removal of the 24″ mirror and preparation to ship it off for re-aluminizing on May 9th, 2013.
The telescope backplane with all instruments removed.
Astronomy professor Seth Redfield and Bruce Strickland from the Wes science machine shop move the lift into place for lowering the mirror cell.
Dave Strickland from the science machine shop aligns the lift. The mirror cell rests on metal cylinders as it is lowered from the telescope.
Dave Strickland removes the central tube from the 24″ mirror cell.
The mirror cell rests on blocks as we prepare to remove the mirror itself.
The 24″ mirror. As you can see, the surface looks a bit dirty.
One last look at the mirror before we seal it in its box.
First light! Beam map made by scanning the radio telescope across the Sun
The students in Wesleyan’s upper-level Radio Astronomy course have spent the semester assembling a Small Radio Telescope (SRT), designed by Alan Rogers at Haystack Observatory. Today the newest member of Wes’s telescopic arsenal saw first light! We employed the total power capability to detect the Sun and used it to map out the telescope beam (spectroscopy is still in the works). Students in Wesleyan astronomy classes can use this telescope to study bright radio sources like the Sun, Cyg-X, and Cas A; map galactic rotation (detect your own dark matter!); and practice principles of radio astronomy.
Many, many thanks are due to the experts who advised the students on assembling the different system components, and worked on some of the hairier machining and electronics: Jon Wallace (Wes alumnus, SARA member, and radio telescope builder extraordinaire), Dave and Bruce Strickland (of the Wesleyan machine shop), and Mike Koziol (our electronics wizard). Wesleyan is the first university to assemble the upgraded SRT system based on the parts list and plans published by Haystack, rather than buying the system as a kit as other universities were able to do in the past, so we needed all the help we could get. Sophomore Laiya Ackman also volunteered her free time to help assemble the dish.
Everyone gathers around to cut the ribbon!
After the ribbon cutting
You can see photos from the official Wesleyan photo blog here. And here are a few pictures from various stages of the construction process:
The completed Feed/LNA! Note that they are standing in a paraboloid shape with the feed at the focus. Yes, they did that on purpose.
Hoisting the completed dish onto the observatory roofRaising the telescope mast upright. This photo was only sort of staged (just like the famous Iwo Jima photo it is meant to evoke!)
