Assassin Picture of the Week

2015 July 16

Tom and Ben: "Coffee Briefs" for Two Recent ASAS-SN Papers

On the left Tom Holoien, OSU Astronomy graduate student and DOE Computational Science Graduate Fellow, describes his paper Six Months of Multi-Wavelength Follow-up of the Tidal Disruption Candidate ASASSN-14li and Implied TDE Rates from ASAS-SN". ASASSN-14li was found by us only 90 Mpc away, the closest TDE ever discovered in optical light. It is worth noting that ASAS-SN found roughly 1 TDE for every 70 Type Ia supernovae in 2014, a rate that is much higher than that of other surveys. Watch the video and read the paper for more details.

Ben Shappee, one of the ASAS-SN "builders" and now a Hubble, Carnegie-Princeton Fellow, summarizes results for his paper "The Young and Bright Type Ia Supernova ASASSN-14lp: Discovery, Early-Time Observations, First-Light Time, Distance to NGC 4666, and Progenitor Constraints." This paper uses prediscovery photometry (with a detection less than a day after first light) and extensive ultraviolet through near-infrared followup observations to rule out a red giant secondary in the progenitor system of ASASSN-14lp. This is another exciting discovery from "Assassin", see the paper for more details.

Both ASASSN-14li and ASASSN-14lp were discovered in late 2014, but as you can see from our papers, we have observed them extensively for several months afterward, and in fact we are still observing ASASSN-14li, so most likely we will write another paper about that fascinating event. As always, stay tuned!

Finally, we had yet another very exciting discovery last week, but we can't write about it :)

Back to ASAS-SN page.

See previous APOWs:

ASAS-SN ``Unpaid Professional Collaborators'': Joe Brimacombe

Where Do Type Ia Supernova Dwell?

Bright Supernova Discoveries Statistics (Again)

ASASSN-14lp: the Brightest Supernova Currently on the Sky

ASASSN-14li: Possible Tidal Disruption Event in Progress

ASASSN-13co: Type-Defying Luminous Type II Supernova

Bright Supernova Discoveries Statistics

Bright Supernovae: ASAS-SN Contribution

Our Big Boom: ASASSN-14cl

First Light on the Small Magellanic Cloud from Chile

Congratulations to Tom and Jacob!

ASASSN-13dn: Spectra from a New Instrument

ASASSN-14ae, A Very Luminous Transient

Our Latest Paper, in Video Form

Host Galaxies of ASAS-SN Supernovae

Back in Real-Time Discovery Business!

We Have a Logo!

Active (Some Less, Some More) Galactic Nuclei with ASAS-SN

Brutus is EXPANDING!

Swift Ultraviolet and Optical Follow-Up of ASASSN-13dl, Our Latest Supernova

Dramatic AGN Outburst in NGC 2617

M81 and Friends

Two ASAS-SN Views of Orion Nebula

AAVSO Observations of Cataclysmic Variable ASASSN-13ck

Two ASAS-SN Supernovae in One Day!

It is Good to be Lucky!

Extreme M-dwarf Flare Observed by ASAS-SN;

Neptune Discovered!

Multiband photometric follow-up of ASASSN-13aw (SN 2013dr);

"Assassin" Unit 1: Brutus;

How ASAS-SN Discovers Supernovae: Case of Supernova ASASSN-13bb;

NGC 2617: Dramatic Seyfert Type Change;

ASASSN-13/SN 2013da: Our First Supernova Three Weeks Later;

M31 and Companions;

This homepage is maintained by Tom Holoien and Kris Stanek. Updated Thu Jul 16 13:53:43 EDT 2015

eXTReMe Tracker