Stardusts in Supernova Remnants Seen by Akari

Koo, Bon‐Chul

doi:10.5303/pkas.2012.27.4.225

Cited by 5 publications

(2 citation statements)

References 21 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…), respectively. In another SN IIP candidate, G54.1+0.3, a dust ring of 0.58-0.86 M has been detected around its pulsar wind nebula, but the nature of the ring is not yet conclusively identified (Koo 2012).…”

Section: Star Dust In Snrsmentioning

confidence: 99%

“…What is special to this mid-IR source is that it has prominent crystalline silicate spectral features. Koo et al (2011) proposed a scenario where the SN progenitor and Muzzio 10 were in a binary system and IRAS 15099−5856 is a CSM survived from the SN blast wave due to the shielding by Muzzio 10 (see Koo 2012). MSH 15−52 appears to be the first case in which crystalline silicates associated with a SNR have been observed.…”

Section: Star Dust In Snrsmentioning

confidence: 99%

See 1 more Smart Citation

Infrared [Fe II] and Dust Emissions from Supernova Remnants

Koo

2013

Proc. IAU

Self Cite

View full text Add to dashboard Cite

The SNRs belonging to the former group are also bright in near-infrared H2 emission, indicating that both atomic and molecular shocks are pervasive in these SNRs. The SNRs belonging to the latter group have relatively small radii in general, implying that most of them are likely the remnants of SN IIL/b or SN IIn that had strong mass loss before the explosion. I also comment on the "[Fe II]-H 2 reversal" in SNRs and on using the [Fe II]-line luminosity as an indicator of the supernova (SN) rate in galaxies. In the mid-and far-infrared regimes, thermal dust emission is dominant. The dust in SNRs can be heated either by collisions with gas species in a hot plasma or by radiation from a shock front. I discuss the characteristics of the infrared morphology of the SNRs interacting with molecular clouds and their dust heating processes. Finally, I give a brief summary of the detection of SN dust and crystalline silicate dust in SNRs.

show abstract

Section: Star Dust In Snrsmentioning

confidence: 99%

Section: Star Dust In Snrsmentioning

confidence: 99%

Infrared [Fe II] and Dust Emissions from Supernova Remnants

Koo

2013

Proc. IAU

Self Cite

View full text Add to dashboard Cite

show abstract

Akari Observations of the Interstellar Medium

Onaka

2012

Publications of The Korean Astronomical Society

View full text Add to dashboard Cite

AKARI has 4 imaging bands in the far-infrared (FIR) and 9 imaging bands that cover the nearinfrared (NIR) to mid-infrared (MIR) contiguously. The FIR bands probe the thermal emission from sub-micron dust grains, while the MIR bands observe emission from stochastically-heated very small grains and the unidentified infrared (UIR) band emissions from carbonaceous materials that contain aromatic and aliphatic bonds. The multi-band characteristics of the AKARI instruments are quite efficient to study the spectral energy distribution of the interstellar medium, which always shows multi-component nature, as well as its variations in the various environments. AKARI also has spectroscopic capabilities. In particular, one of the onboard instruments, Infrared Camera (IRC), can obtain a continuous spectrum from 2.5 to 13 µm with the same slit. This allows us to make a comparative study of the UIR bands in the diffuse emission from the 3.3 to 11.3 µm for the first time. The IRC explores high-sensitivity spectroscopy in the NIR, which enables the study of interstellar ices and the UIR band emission at 3.3-3.5 µm in various objects. Particularly, the UIR bands in this spectral range contain unique information on the aromatic and aliphatic bonds in the band carriers. This presentation reviews the results of AKARI observations of the interstellar medium with an emphasis on the observations of the NIR spectroscopy.

show abstract

The Filamentary Web of Star Formation

White¹,

Doi²,

Komugi³

et al. 2012

Publications of The Korean Astronomical Society

View full text Add to dashboard Cite

Following the first Public Release of the AKARI Point Source catalogues, we have worked on the production of a new far-infrared All-Sky Diffuse mapping product. In this paper we report first results from the All Sky diffuse maps that will shortly be released to the community, based on analysis of data from the Far Infrared Surveyor (65 µm -160 µm ) instrument. These data are likely to have a strong impact on studies of extended structures, and the diffuse ISM.

show abstract

Stardusts in Supernova Remnants Seen by Akari

Cited by 5 publications

References 21 publications

Infrared [Fe II] and Dust Emissions from Supernova Remnants

Infrared [Fe II] and Dust Emissions from Supernova Remnants

Akari Observations of the Interstellar Medium

The Filamentary Web of Star Formation

Contact Info

Product

Resources

About