[Orig: June 30, 2017] Hello and happy Friday to everyone! Here is the latest from TFN. Again, each point is a daily average, and as you can see, we are still slightly down. The graph looks slightly different from yesterdays graph because I am trying out new (and more) comparison stars. We measure the brightness of the comparison stars and compare this to that of the target to get a differential flux. The more comparisons you have, the better off you are estimating the target'
[Orig: June 28, 2017] Hi everyone, The plots I typically share with you come from a program called AstroImageJ (AIJ) that does the aperture photometry (details of which were mentioned in a previous post; the program is freely available here). These plots are always subject to change (by small amounts) because they are binned (averaged data in a time period) and normalized (what you assume the star's "normal" brightness is, and making that =1) on the fly. Ive exported from AIJ
[Orig: June 26, 2017] Hi everyone, First, I wanted to share a figure I made for the Elsie discovery paper (I got a little distracted by dip#2, but its coming along nice). This shows the data taken at the LCO TFN station in three filters (or colors), B, r', and i', as labeled on the legend. As you can see, on the sides of the dip (less than ~10 and greater than ~18), the colors are fairly well 'mixed' around the dotted horizontal line (normal brightness). Within the dip howeve
[Orig: June 25, 2017] Hi everyone, Here is what the latest data for the LCO TFN station (top; unfortunately TFN had poor weather the past couple nights) and OGG (bottom). After 2 weeks of dip #2, Im starting to regret the choice of my blog post names... Perhaps Ill change that soon. Lastly, one of the Kickstarter backers brought up the point that we are taking images in multiple colors. I haven't been posting these (yet) to the status updates to minimize confusion. Tomorrow
This messages comes from Dr. Angelle Tanner, an astronomer colleague of mine. We first met when we were both postdocs at Georgia State University and shared an office together. She is now a professor of Astronomy at Mississippi State University, and her research involves exoplanet detection and characterization through a variety of techniques (more here). She has the following message to share with the community. Hello Kickstarter backers, In honor of my mom who passed awa
[Orig: June 24, 2017] Hi everyone, Here is what the latest data for the LCO station in Tenerife. The Maui station is still taking data, I will update later today when it is finished for the night. ~Tabby and team
[Orig: June 22, 2017] Hi everyone, The polls are open for eligible Kickstarter backer to vote for the name of the "The June 2017 dip". We will announce the winner next Tuesday, so stay tuned! here is the latest graph from the LCO TFN station. The dip still continues on!!! Of course you can expect more later from us, ~Tabby and team
[Orig: June 19, 2017] Hi everyone, Over the weekend the star got a bit brighter, but it is too soon to claim the dip is over! Here is the latest graph. The LCO network did not get great data due to weather over the past ~24 hours. This is reflected in the large error bars on the last (right-most) data point. We are also prepping for an election to give "The June 2017 dip" a better name. Stay tuned for details! ~Tabby and team