2010dn | Transient Name Server

RA/DEC (2000)

10:18:19.891 +41:26:28.79

154.58288 +41.44133

Type

ILRT

Redshift

0.00198

Classification Report

Public

Host Name

NGC 3184

Comments

[Discoverer=Itagaki; DiscoveryRef=CBET 2299; PositionRef=CBET 2299; Orig Type=LBV ]

IAU name

sn2010dn

NED SIMBAD DECaLS PanSTARRS-1 SkyMapper VizieR WISE DSS ADS

Light curves

▌

Other_Other_Clear

Pointer position (MJD, Mag, Abs.Mag): (0.00, 0.00, 0.00)

Spectra

Select	ID	Obs-date (UT)	Tel / Inst	Exp-Time	Observer/s	Reducer/s	Group	Spectrum ascii file	Spectrum fits file	Spec. Type	Assoc. Groups	End prop. period	Remarks
	9318	2010-06-02 21:40:09	TNG / DOLORES	2100	A. Harutyunyan	Y.-Z. Cai/A. Pastorello/A. Reguitti	Padova-Asiago	tns_2010dn_2010-06-02_21-40-09_TNG_DOLORES_Padova-Asiago.ascii	tns_2010dn_2010-06-02_21-40-09_TNG_DOLORES_Padova-Asiago.fits	Object		2022-04-08	The spectrum was already redshift corrected.
Binning factor: (rounded to nearest integer >1) Mouse hovers at WL: 0 (rest), 0 (observed) ▌Show H at z=v_exp= km/s ▌Show He at z=v_exp= km/s ▌Show He II at z=v_exp= km/s ▌Show C II at z=v_exp= km/s ▌Show C III at z=v_exp= km/s ▌Show C IV at z=v_exp= km/s ▌Show N II at z=v_exp= km/s ▌Show N III at z=v_exp= km/s ▌Show N IV at z=v_exp= km/s ▌Show N V at z=v_exp= km/s ▌Show O at z=v_exp= km/s ▌Show [O I] at z=v_exp= km/s ▌Show O II at z=v_exp= km/s ▌Show [O II] at z=v_exp= km/s ▌Show [O III] at z=v_exp= km/s ▌Show O V at z=v_exp= km/s ▌Show O VI at z=v_exp= km/s ▌Show Na at z=v_exp= km/s ▌Show Mg at z=v_exp= km/s ▌Show Mg II at z=v_exp= km/s ▌Show Si II at z=v_exp= km/s ▌Show S II at z=v_exp= km/s ▌Show Ca II at z=v_exp= km/s ▌Show [Ca II] at z=v_exp= km/s ▌Show Fe II at z=v_exp= km/s ▌Show Fe III at z=v_exp= km/s ▌Show Å at z=v_exp= km/s ▌Show Å at z=v_exp= km/s ▌Show Å at z=v_exp= km/s ▌Show Å at z=v_exp= km/s ▌Show Tellurics ▌Show Galaxy lines at z= ▌Show WR-WN at z=v_exp= km/s ▌Show WR-WC/O at z=v_exp= km/s z-step: v-step: Remarks The spectrum was already redshift corrected.

Light Curves

Filter

Tel / Inst

Obs-date range

JD Range

Photometry

Clear-

Other_Other

2010-05-21 12:04:19 - 2010-05-31 12:33:07

2455338.003 - 2455348.023

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
203847	2010-05-31 12:33:07	2455348.023	17.5			VegaMag	Clear-	Other_Other		K. Itagaki	a 0.60-m f/5.7 reflector (+ Bitran BT-214E camera)
203846	2010-05-21 12:04:19	2455338.003			18	VegaMag	Clear-	Other_Other		K. Itagaki	[Last non detection] a 0.60-m f/5.7 reflector (+ Bitran BT-214E camera)

AT Reports

ID	Time received (UT)	Sender	Reporter/s	Reporting group	Disc. Data Source	RA	DEC	Discovery date (UT)	Discovery Mag.	Filter	Related files	AT Type	Host name	Internal name	Assoc. Groups	End prop. period	Remarks	ADS Bibcode	Unreal	Auto classification
105437	2021-04-06 03:08:34	Yongzhi Cai	Y.-Z. Cai (Tsinghua University); A. Pastorello (INAF-OAPd; on behalf of Padova-Asiago Group); A. Reguitti (UNAB; INAF-OAPd); K. Itagaki (Itagaki Astronomical Observatory)	Padova-Asiago		10:18:19.890	+41:26:28.80	2010-05-31 12:33:07.200	17.5	Clear-		PSN	NGC 3184	SN 2010dn				2021TNSTR1078....1C	N

Classification Reports

Time received (UT)

Sender

Classifier/s

Group

Classification

Redshift

Spectra

Related files

Assoc. Groups

End prop. period

Remarks

ADS Bibcode

9308

2021-04-07 15:34:31

Yongzhi Cai

Y.-Z. Cai (Tsinghua University); A. Pastorello (INAF-OAPd; on behalf of Padova-Asiago Group); A. Reguitti (UNAB; INAF-OAPd); A. Harutyunyan (TNG)

Padova-Asiago

ILRT

0.00198

Padova-Asiago

SN 2010dn is a gap transient (Kasliwal 2012; Pastorello & Fraser 2019) in the spiral galaxy NGC 3184 (z=0.00198), which was discovered by K. Itagaki on 2010 May 31.523 UT (see http://www.cbat.eps.harvard.edu/iau/cbet/002200/CBET002299.txt). It has a peak absolute magnitude of about -13.5 mag, within the luminosity gap between the classical novae and the typical core-collapse supernovae. A spectrum of SN 2010dn was obtained on 2010 June 2th (JD=2455350.40288) with the 3.58m Telescopio Nazionale Galileo (TNG) (+ LRS; Grism LR-R; Range 509-834 nm; Resolution 1.05nm). The spectrum is dominated by a blue continuum with a blackbody temperature of about 7100 K. The narrow H-alpha emission line has a FWHM expansion velocity of about 750 km/s (corrected for instrument resolution). Furthermore, we detect the prominent [Ca II] doublet (λλ 7291, 7324) in emission, along with Ca NIR triplet, weak Fe lines in emission and Ca H&K lines in absorption. Overall, the spectrum of SN 2010dn is closely reminiscent of the early spectra of the prototypical intermediate luminosity red transient (ILRT) SN 2008S (Smith et al., 2009, ApJ, 697, L49, Botticella et al. 2009, MNRAS, 398, 1041). SN 2010dn was originally classified as a giant luminous blue variable (LBV) outburst (CBET 2300; see http://www.cbat.eps.harvard.edu/iau/cbet/002300/CBET002300.txt), however, subsequent follow-up observations disfavour this interpretation (Cai et al. 2021, in preparation).

2021TNSCR1101....1C

Spectra

ID	Obs-date (UT)	Tel / Inst	Exp-Time	Observer/s	Reducer/s	Group	Spectrum ascii file	Spectrum fits file	Spec. Type	Assoc. Groups	End prop. period	Remarks
9318	2010-06-02 21:40:09	TNG / DOLORES	2100	A. Harutyunyan	Y.-Z. Cai/A. Pastorello/A. Reguitti	Padova-Asiago	tns_2010dn_2010-06-02_21-40-09_TNG_DOLORES_Padova-Asiago.ascii	tns_2010dn_2010-06-02_21-40-09_TNG_DOLORES_Padova-Asiago.fits	Object		2022-04-08	The spectrum was already redshift corrected.

Comments

AT Report/s were associated with object

None AT report/s 105437 for 2010mi were associated with object 2010dn.
Object 2010mi was removed from the system.