Calendar

Oct
13
Fri
PDS Atmospheres Node meeting
Oct 13 @ 10:30 am – 11:30 am
Oct
27
Fri
PDS Atmospheres Node meeting
Oct 27 @ 10:30 am – 11:30 am
Observatory Open House
Oct 27 @ 8:00 pm – 9:00 pm
Observatory Open House

Your hosts for the October Open House at the Campus Observatory are Kristian Finlator, Sten Hasselquist, Rachel Marra, and Aleczander Herczeg.

The Calendar of Astronomical Events for October 2017

October Night Sky Chart.

Nov
10
Fri
PDS Atmospheres Node meeting
Nov 10 @ 10:30 am – 11:30 am
Nov
17
Fri
Observatory Open House
Nov 17 @ 7:00 pm – 8:00 pm
Observatory Open House

Your hosts for the November Campus Observatory Open House are Chris Churchill, Sean Sellers, Sam Schonfeld, and Sarah Kovac.

 

The Calendar of Astronomical Events for November 2017

November Night Sky Chart.

Dec
1
Fri
PDS Atmospheres Node meeting
Dec 1 @ 10:30 am – 11:30 am
Dec
8
Fri
Observatory Open House
Dec 8 @ 7:00 pm – 8:00 pm
Observatory Open House

Your hosts for the December Campus Observatory Open House are Anatoly Klypin, Gordon MacDonald, Xander Thelen, and Minje Beom.

 

The Winter Solstice

December Night Sky Chart.

Jan
24
Wed
Colloquium Thesis Proposal: Laurel Farris
Jan 24 @ 2:30 pm – 3:30 pm
Colloquium Thesis Proposal: Laurel Farris @ Science Hall, Room 110

Characterizing the oscillatory response of the chromosphere during solar flares

Laurel Farris; NMSU Astronomy Department

Quasi-periodic pulsations (QPPs) are observed in the emission of solar flares over a wide range of wavelengths,

particularly in the radio and hard x-ray regimes where non-thermal emission dominates. These pulsations are

considered to be an intrinsic feature of flares, yet the exact mechanism that triggers them remains unclear.

There have been reports of an increase in the oscillatory power at 3-minute periods (the local acoustic

cutoff frequency) in the solar chromosphere associated with flaring events. I propose to investigate the

chromospheric response to flares by inspecting the spatial and temporal onset and evolution of the 3-minute

oscillatory power, along with any QPP patterns that may appear in chromospheric emission. The analysis

will be extended to multiple flares, and will include time before, during, and after the main event. To test

initial methods, the target of interest was the well-studied 2011 February 15 X-class flare. Data from two

instruments on board the Solar Dynamics Observatory (SDO) were used in the preliminary study, including

continuum images from the Helioseismic and Magnetic Imager (HMI) and UV images at 1600 and 1700

Angstroms from the Atmospheric Imaging Assembly (AIA). Later, spectroscopic data from the Interface

Region Imaging Spectrometer (IRIS) will be used to examine velocity patterns in addition to intensity.

Jan
26
Fri
Observatory Open House
Jan 26 @ 7:00 pm – 8:00 pm
Observatory Open House

Your hosts for the January 2018 Campus Observatory Open House are Rene Walterbos, Jeremy Emmett, and Caitlin Doughty.

Feb
5
Mon
PDS Atmospheres Node meeting
Feb 5 @ 3:00 pm – 4:00 pm