文件操作 - 1749280269.M719819P22130.mail.planetcloud-host.com,S=5727,W=5835:2,

文件: /var/vmail/bicar.it/stefano/cur/1749280269.M719819P22130.mail.planetcloud-host.com,S=5727,W=5835:2,

编辑文件内容

Received-SPF: Pass (sender SPF authorized) identity=mailfrom; client-ip=174.142.199.243; helo=server.astronomerstelegram.org; envelope-from=atel@astronomerstelegram.org; receiver=stefano@bicar.it 
To: stefano@bicar.it
From: atel@astronomerstelegram.org
Subject: ATel  17224, 17225
Message-Id: <20250607071105.D937C28808F6@server.astronomerstelegram.org>
Date: Sat,  7 Jun 2025 03:11:05 -0400 (EDT)

------------------------------------------------------------------------------ 
The Astronomer's Telegram is free to read, free to publish, free to
use.  Thanks to the support of our patrons, we can continue to
keep it free. https://www.patreon.com/astronomerstel
------------------------------------------------------------------------------ 
The Astronomer's Telegram                   http://www.astronomerstelegram.org 
------------------------------------------------------------------------------
Posted: Within the last 24 hours
==============================================================================
ATEL #17224							     ATEL #17224

Title:	Spectroscopic Classification of PNV J06302516-6955014 as a
		Classical Nova
Author:	Yusuke Tampo (South African Astronomical Observatory, University
		of Cape Town)
Queries:	yusuke@saao.ac.za
Posted:	6 Jun 2025; 17:51 UT
Subjects:Optical, Binary, Cataclysmic Variable, Nova, Star, Transient,
		Variables

I report the spectroscopic classification of <a href="http://www.cbat.eps.harvard.edu/unconf/followups/J06302516-6955014.html">PNV
J06302516-6955014</a>. Its optical spectrum was obtained on 2025-06-06.705
UT by the SpUpNIC (<a href="https://www.saao.ac.za/wp-content/uploads/2019/09/SpUpNIC_2016-1.pdf">Crause
et al, 2016</a>) mounted on the 1.9m telescope at the Sutherland Observatory,
South African Astronomical Observatory, using the grating 6 (wavelength
coverage 4400-7000&#8491;, resolution R~3000).

As reported to <a href="http://www.cbat.eps.harvard.edu/unconf/followups/J06302516-6955014.html">CBAT</a>,
PNV J06302516-6955014 was originally discovered by the Brazilian Transient
Search on 2025-06-05.8825 UT at 11.2 mag (unfiltered). There is no counterpart
in archival photometric surveys. 
<a href="http://www.kusastro.kyoto-u.ac.jp/~tampo/atel/PNVJ0630-69.250606.pdf">My
normalized spectrum</a> shows the Balmer and He I lines with a P Cygni
profile. 
The absorption minimum of this P Cygni profile in H&alpha; is located around
-600 km/s. 
Combining these spectral features and its large eruption amplitude, I conclude
that this object is a classical nova.

My spectrum: http://www.kusastro.kyoto-u.ac.jp/~tampo/atel/PNVJ0630-69.250606.pdf
------------------------------------------------------------------------------
Password Certification: Yusuke Tampo (yusuke@saao.ac.za)
https://www.astronomerstelegram.org/?read=17224
==============================================================================
ATEL #17225							     ATEL #17225

Title:	Spectroscopic Classifications of Optical Transients with the
		Lick Shane telescope
Author:	Kishore C. Patra,  Ryan J. Foley (UCSC)
Queries:	kcpatra@ucsc.edu
Posted:	6 Jun 2025; 22:03 UT
Subjects:Optical, Supernovae, Transient

We report the following classifications of optical transients from spectroscopic
observations with the Kast spectrograph on the Shane telescope. The targets
were supplied by Young Supernova Experiment and GOTO. Observations were
made on 2025 June 06 UT. Classifications were performed with SNID (Blondin
& Tonry, 2007, ApJ, 666, 1024).

Name        	| IAU Name  	| RA (J2000)	| Dec (J2000)	|   z	| Type	| Phase	|
Notes 
PS25dah	        | AT2025mmu 	| 16:00:46.786	| +18:04:50.83	| 0.044	| Ic-BL	|
-2 d	| (1) 
GOTO25dhn	| AT2025mxn	| 23:17:04.666	| +18:35:59.28	| 0.04	| Ia	| -6 d
	| (2)

Notes: 
When the redshift is given to 2 decimal places, it is derived from the
SN spectrum.  Otherwise, the redshift is determined from the host galaxy.

(1) The redshift was determined using narrow emission lines in the spectrum,
including H I and [N II].  
(2) We measure Si II 6355 and Ca II near-infrared triplet absorption velocities
of -14,100 km/s and -18,600 km/s, respectively.

------------------------------------------------------------------------------
Password Certification: Kishore Patra (kcpatra@ucsc.edu)
https://www.astronomerstelegram.org/?read=17225
==============================================================================

==============================================================================
This is an automatically-generated notice.  You can remove yourself permanently
from receiving both the Daily Email Digest and Instant Email Notices from
The Astronomer's Telegram by following this link:
https://www.astronomerstelegram.org?unsubscribe&confirmation=a803d34e7ea924f9a4142bac00763549&address=stefano@bicar.it

文件操作 - 1749280269.M719819P22130.mail.planetcloud-host.com,S=5727,W=5835:2,

文件: /var/vmail/bicar.it/stefano/cur/1749280269.M719819P22130.mail.planetcloud-host.com,S=5727,W=5835:2,

编辑文件内容

修改文件时间

删除文件