ALMA Continuum Spectrum of the M87 Nucleus: Quasi-simultaneous continuum observations at bands-3, 6, 7, and 9

Akihiro Doi; Kazuhiro Hada; Hiroshi Nagai; Motoki Kino; Mareki Honma; Kazunori Akiyama; Tomoaki Oyama; Yusuke Kono

doi:10.1051/epjconf/20136108008

ALMA Continuum Spectrum of the M87 Nucleus: Quasi-simultaneous continuum observations at bands-3, 6, 7, and 9

Akihiro Doi
, Kazuhiro Hada
, Hiroshi Nagai
, Motoki Kino
, Mareki Honma
, Kazunori Akiyama
, Tomoaki Oyama
, Yusuke Kono

Research output: Contribution to journal › Conference article › peer-review

7 Citations (Scopus)

Abstract

We report the preliminary result of ALMA continuum observations toward the M87 nucleus at thirtysix frequencies (quasi-simultaneously) ranging from 90 GHz to 700 GHz. We detected the nuclear component at almost all the frequency points. We found a spectral break at the millimeter regime: a nearly flat spectrum at lower frequencies and a steep spectrum at higher frequencies. The spectral profile indicates a possible physical situation in the vicinity of the central supermassive black hole.

Original language	English
Article number	08008
Journal	EPJ Web of Conferences
Volume	61
DOIs	https://doi.org/10.1051/epjconf/20136108008
Publication status	Published - 9 Dec 2013
Event	International Symposium on the Innermost Regions of Relativistic Jets and Their Magnetic Fields - Granada, Spain Duration: 10 Jun 2013 → 14 Jun 2013

ASJC Scopus subject areas

General Physics and Astronomy

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10.1051/epjconf/20136108008Licence: CC BY

Cite this

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title = "ALMA Continuum Spectrum of the M87 Nucleus: Quasi-simultaneous continuum observations at bands-3, 6, 7, and 9",

abstract = "We report the preliminary result of ALMA continuum observations toward the M87 nucleus at thirtysix frequencies (quasi-simultaneously) ranging from 90 GHz to 700 GHz. We detected the nuclear component at almost all the frequency points. We found a spectral break at the millimeter regime: a nearly flat spectrum at lower frequencies and a steep spectrum at higher frequencies. The spectral profile indicates a possible physical situation in the vicinity of the central supermassive black hole.",

author = "Akihiro Doi and Kazuhiro Hada and Hiroshi Nagai and Motoki Kino and Mareki Honma and Kazunori Akiyama and Tomoaki Oyama and Yusuke Kono",

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language = "English",

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T1 - ALMA Continuum Spectrum of the M87 Nucleus

T2 - International Symposium on the Innermost Regions of Relativistic Jets and Their Magnetic Fields

AU - Doi, Akihiro

AU - Hada, Kazuhiro

AU - Nagai, Hiroshi

AU - Kino, Motoki

AU - Honma, Mareki

AU - Akiyama, Kazunori

AU - Oyama, Tomoaki

AU - Kono, Yusuke

PY - 2013/12/9

Y1 - 2013/12/9

N2 - We report the preliminary result of ALMA continuum observations toward the M87 nucleus at thirtysix frequencies (quasi-simultaneously) ranging from 90 GHz to 700 GHz. We detected the nuclear component at almost all the frequency points. We found a spectral break at the millimeter regime: a nearly flat spectrum at lower frequencies and a steep spectrum at higher frequencies. The spectral profile indicates a possible physical situation in the vicinity of the central supermassive black hole.

AB - We report the preliminary result of ALMA continuum observations toward the M87 nucleus at thirtysix frequencies (quasi-simultaneously) ranging from 90 GHz to 700 GHz. We detected the nuclear component at almost all the frequency points. We found a spectral break at the millimeter regime: a nearly flat spectrum at lower frequencies and a steep spectrum at higher frequencies. The spectral profile indicates a possible physical situation in the vicinity of the central supermassive black hole.

UR - https://www.scopus.com/pages/publications/84893272985

U2 - 10.1051/epjconf/20136108008

DO - 10.1051/epjconf/20136108008

M3 - Conference article

AN - SCOPUS:84893272985

SN - 2101-6275

VL - 61

JO - EPJ Web of Conferences

JF - EPJ Web of Conferences

M1 - 08008

Y2 - 10 June 2013 through 14 June 2013

ER -

ALMA Continuum Spectrum of the M87 Nucleus: Quasi-simultaneous continuum observations at bands-3, 6, 7, and 9

Abstract

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