Nicolas Grosso

Observation of enhanced X-ray emission from the CTTS AA Tau during a transit of an accretion funnel (2007)

Grosso, Nicolas, Bouvier, Jérôme, Montmerle, Thierry, Fernández, Matilde, Grankin, Konstantin, Osorio, Maria Rosa Zapatero

AA Tau was observed for about 5h per XMM orbit (2 days) over 8 successive orbits, which covers two optical eclipse periods (8.2 days). The XMM optical/UV monitor simultaneously provided UV photometry...

A 100ks XMM-Newton view of the Seyfert 1.8 ESO113-G010. I. Discovery of large X-ray variability and study of the FeKalpha line complex (2007)

Porquet, Delphine, Uttley, Phil, Reeves, James N., Markowitz, Alex, Bianchi, Stefano, Grosso, Nicolas, ...

(Abridged) We present here a long (100ks) XMM-Newton follow-up of the Seyfert 1.8 galaxy ESO113-G010 performed in November 2005, in order to study over a longer time-scale its main X-ray properties....

A U-band survey of brown dwarfs in the Taurus Molecular Cloud with the XMM-Newton Optical/UV Monitor (2007)

Grosso, Nicolas, Audard, Marc, Bouvier, Jérôme, Briggs, Kevin, Güdel, Manuel

We aim to characterize the U-band variability of young brown dwarfs in the Taurus Molecular Cloud and discuss its origin. We used the XMM-Newton Extended Survey of the Taurus Molecular Cloud, where a...

X-ray emission from the young brown dwarfs of the Taurus Molecular Cloud (2007)

Grosso, Nicolas, Briggs, Kevin, Güdel, Manuel, Guieu, Sylvain, Franciosini, Elena, Palla, Francesco, ...

AIMS. We report the X-ray properties of young (~3 Myr) bona fide brown dwarfs (BDs) of the Taurus Molecular Cloud (TMC). METHODS. The XMM-Newton Extended Survey of the TMC (XEST) is a large program...

New Pre-Main Sequence Candidates in the Taurus-Auriga Star Forming Region (2007)

Scelsi, Luigi, Maggio, Antonio, Micela, Giuseppina, Pillitteri, Ignazio, Stelzer, Beate, Briggs, Kevin, ...

We have studied the X-ray source population of the Taurus Molecular Cloud (TMC) to search for new members of the Taurus-Auriga star forming region. Candidate members have been selected among the...

A 100ks XMM-Newton view of the Seyfert 1.8 ESO113-G010. I. Discovery of large X-ray variability and study of the FeKalpha line complex. (2007)

Porquet, Delphine, Uttley, Phil, Reeves, James, Markowitz, Alex, Bianchi, Stefano, Grosso, Nicolas, ...

(Abridged) We present here a long (100ks) XMM-Newton follow-up of the Seyfert 1.8 galaxy ESO113-G010 performed in November 2005, in order to study over a longer time-scale its main X-ray properties....

Observation of enhanced X-ray emission from the CTTS AA Tau during a transit of an accretion funnel (2007)

Grosso, Nicolas, Bouvier, Jérôme, Montmerle, Thierry, Fernández, Matilde, Grankin, Konstantin, Zapatero Osorio, Maria Rosa

AA Tau was observed for about 5h per XMM orbit (2 days) over 8 successive orbits, which covers two optical eclipse periods (8.2 days). The XMM optical/UV monitor simultaneously provided UV photometry...

Observation of enhanced X-ray emission from the CTTS AA Tau during a transit of an accretion funnel (2007)

Grosso, Nicolas, Bouvier, Jérôme, Montmerle, Thierry, Fernández, Matilde, Grankin, Konstantin, Zapatero Osorio, Maria Rosa

AA Tau was observed for about 5h per XMM orbit (2 days) over 8 successive orbits, which covers two optical eclipse periods (8.2 days). The XMM optical/UV monitor simultaneously provided UV photometry...

X-ray emission from the young brown dwarfs of the Taurus Molecular Cloud (2007)

Grosso, Nicolas, Briggs, Kevin, Güdel, Manuel, Guieu, Sylvain, Franciosini, Elena, Palla, Francesco, ...

AIMS. We report the X-ray properties of young (~3 Myr) bona fide brown dwarfs (BDs) of the Taurus Molecular Cloud (TMC). METHODS. The XMM-Newton Extended Survey of the TMC (XEST) is a large program...

A U-band survey of brown dwarfs in the Taurus Molecular Cloud with the XMM-Newton Optical/UV Monitor (2007)

Grosso, Nicolas, Audard, Marc, Bouvier, Jérôme, Briggs, Kevin, Güdel, Manuel

We aim to characterize the U-band variability of young brown dwarfs in the Taurus Molecular Cloud and discuss its origin. We used the XMM-Newton Extended Survey of the Taurus Molecular Cloud, where a...

New Pre-Main Sequence Candidates in the Taurus-Auriga Star Forming Region (2007)

Scelsi, Luigi, Maggio, Antonio, Micela, Giuseppina, Pillitteri, Ignazio, Stelzer, Beate, Briggs, Kevin, ...

We have studied the X-ray source population of the Taurus Molecular Cloud (TMC) to search for new members of the Taurus-Auriga star forming region. Candidate members have been selected among the...

A 100ks XMM-Newton view of the Seyfert 1.8 ESO113-G010. I. Discovery of large X-ray variability and study of the FeKalpha line complex. (2007)

Porquet, Delphine, Uttley, Phil, Reeves, James, Markowitz, Alex, Bianchi, Stefano, Grosso, Nicolas, ...

(Abridged) We present here a long (100ks) XMM-Newton follow-up of the Seyfert 1.8 galaxy ESO113-G010 performed in November 2005, in order to study over a longer time-scale its main X-ray properties....

The XMM-Newton Optical Monitor Survey of the Taurus Molecular Cloud (2006)

Audard, Marc, Briggs, Kevin, Grosso, Nicolas, Guedel, Manuel, Scelsi, Luigi, Bouvier, Jerome, ...

The Optical Monitor (OM) on-board XMM-Newton obtained optical/ultraviolet data for the XMM-Newton Extended Survey of the Taurus Molecular Cloud (XEST), simultaneously with the X-ray detectors. With...

The XMM-Newton Extended Survey of the Taurus Molecular Cloud (XEST) (2006)

Güdel, Manuel, Briggs, Kevin, Arzner, Kaspar, Audard, Marc, Bouvier, Jérôme, Feigelson, Eric, ...

(abridged:) The XMM-Newton Extended Survey of the Taurus Molecular Cloud (XEST) surveys the most populated ~5 square degrees of the Taurus star formation region, using the XMM-Newton X-ray...

A U-band survey of brown dwarfs in the Taurus Molecular Cloud with the XMM-Newton Optical/UV Monitor (2006)

Grosso, Nicolas, Audard, Marc, Bouvier, Jérôme, Briggs, Kevin, Güdel, Manuel

We aim to characterize the U-band variability of young brown dwarfs in the Taurus Molecular Cloud and discuss its origin. We used the XMM-Newton Extended Survey of the Taurus Molecular Cloud, where a...

A U-band survey of brown dwarfs in the Taurus Molecular Cloud with the XMM-Newton Optical/UV Monitor (2006)

Grosso, Nicolas, Audard, Marc, Bouvier, Jérôme, Briggs, Kevin, Güdel, Manuel

We aim to characterize the U-band variability of young brown dwarfs in the Taurus Molecular Cloud and discuss its origin. We used the XMM-Newton Extended Survey of the Taurus Molecular Cloud, where a...

A U-band survey of brown dwarfs in the Taurus Molecular Cloud with the XMM-Newton Optical/UV Monitor (2006)

Grosso, Nicolas, Audard, Marc, Bouvier, Jérôme, Briggs, Kevin R., Güdel, Manuel, ...

We aim to characterize the U-band variability of young brown dwarfs in the Taurus Molecular Cloud and discuss its origin. We used the XMM-Newton Extended Survey of the Taurus Molecular Cloud, where a...

X-ray emission from the young brown dwarfs of the Taurus Molecular Cloud (2006)

Grosso, Nicolas, Briggs, Kevin, Güdel, Manuel, Guieu, Sylvain, Franciosini, Elena, Palla, Francesco, ...

AIMS. We report the X-ray properties of young (~3 Myr) bona fide brown dwarfs (BDs) of the Taurus Molecular Cloud (TMC). METHODS. The XMM-Newton Extended Survey of the TMC (XEST) is a large program...

X-ray emission from the young brown dwarfs of the Taurus Molecular Cloud (2006)

Grosso, Nicolas, Briggs, Kevin, Güdel, Manuel, Guieu, Sylvain, Franciosini, Elena, Palla, Francesco, ...

AIMS. We report the X-ray properties of young (~3 Myr) bona fide brown dwarfs (BDs) of the Taurus Molecular Cloud (TMC). METHODS. The XMM-Newton Extended Survey of the TMC (XEST) is a large program...

X-rays from HH210 in the Orion nebula (2006)

Grosso, Nicolas, Feigelson, Eric, Getman, Konstantin, Kastner, Joel, Bally, John, Mccaughrean, Mark

We report the detection during the Chandra Orion Ultradeep Project (COUP) of two soft, constant, and faint X-ray sources associated with the Herbig-Haro object HH210. HH210 is located at the tip of...

X-rays from HH210 in the Orion nebula (2006)

Grosso, Nicolas, Feigelson, Eric, Getman, Konstantin, Kastner, Joel, Bally, John, Mccaughrean, Mark

We report the detection during the Chandra Orion Ultradeep Project (COUP) of two soft, constant, and faint X-ray sources associated with the Herbig-Haro object HH210. HH210 is located at the tip of...

X-rays from HH210 in the Orion nebula (2006)

Grosso, Nicolas, Feigelson, Eric D., Getman, Konstantin V., Kastner, Joel H., Bally, John, McCaughrean, Mark J.

We report the detection during the Chandra Orion Ultradeep Project (COUP) of two soft, constant, and faint X-ray sources associated with the Herbig-Haro object HH210. HH210 is located at the tip of...

The XMM-Newton Extended Survey of the Taurus Molecular Cloud (XEST) (2006)

Güdel, Manuel, Briggs, Kevin, Arzner, Kaspar, Audard, Marc, Bouvier, Jérôme, Feigelson, Eric, ...

(abridged:) The XMM-Newton Extended Survey of the Taurus Molecular Cloud (XEST) surveys the most populated ~5 square degrees of the Taurus star formation region, using the XMM-Newton X-ray...

New Pre-Main Sequence Candidates in the Taurus-Auriga Star Forming Region (2006)

Scelsi, Luigi, Maggio, Antonio, Micela, Giuseppina, Pillitteri, Ignazio, Stelzer, Beate, Briggs, Kevin, ...

We have studied the X-ray source population of the Taurus Molecular Cloud (TMC) to search for new members of the Taurus-Auriga star forming region. Candidate members have been selected among the...

New Pre-Main Sequence Candidates in the Taurus-Auriga Star Forming Region (2006)

Scelsi, Luigi, Maggio, Antonio, Micela, Giuseppina, Pillitteri, Ignazio, Stelzer, Beate, Briggs, Kevin, ...

We have studied the X-ray source population of the Taurus Molecular Cloud (TMC) to search for new members of the Taurus-Auriga star forming region. Candidate members have been selected among the...

The XMM-Newton Extended Survey of the Taurus Molecular Cloud (XEST) (2006)

Güdel, Manuel, Briggs, Kevin, Arzner, Kaspar, Audard, Marc, Bouvier, Jérôme, Feigelson, Eric, ...

(abridged:) The XMM-Newton Extended Survey of the Taurus Molecular Cloud (XEST) surveys the most populated ~5 square degrees of the Taurus star formation region, using the XMM-Newton X-ray...

X-rays from HH210 in the Orion nebula (2006)

Grosso, Nicolas, Feigelson, Eric, Getman, Konstantin, Kastner, Joel, Bally, John, Mccaughrean, Mark

We report the detection during the Chandra Orion Ultradeep Project (COUP) of two soft, constant, and faint X-ray sources associated with the Herbig-Haro object HH210. HH210 is located at the tip of...

X-rays from HH210 in the Orion nebula (2006)

Grosso, Nicolas, Feigelson, Eric, Getman, Konstantin, Kastner, Joel, Bally, John, Mccaughrean, Mark

We report the detection during the Chandra Orion Ultradeep Project (COUP) of two soft, constant, and faint X-ray sources associated with the Herbig-Haro object HH210. HH210 is located at the tip of...

Spectral classification of sources in XMM-Newton X-ray observation of the rapidly accreting young star V1647 Ori (2006)

Mu, Bo, Kastner, Joel, Grosso, Nicolas

Paper from Space Telescopes and Instrumentation II: Ultraviolet to Gamma Ray held on 24 May 2006 at Orlando, FL, USA Copyright 2006 Society of Photo-Optical Instrumentation Engineers. One print or...

COUP census of X-ray stars in BN-KL and OMC-1S (2005)

Grosso, Nicolas, Feigelson, Eric, Getman, Konstantin, Townsley, Leisa, Broos, Patrick, Flaccomio, Ettore, ...

We present a study of the X-ray sources detected in the vicinity of two density peaks in the Orion Molecular Cloud 1 behind the Orion Nebula Cluster (ONC), as seen in the exceptionally deep (~10...

Repeated X-ray Flaring Activity in Sagittarius A* (2005)

Belanger, Guillaume, Goldwurm, Andrea, Melia, Fulvio, Yusef-Zadeh, Farah, Ferrando, Philippe, Porquet, Delphine, ...

Investigating the spectral and temporal characteristics of the X-rays coming from Sagittarius A* (Sgr A*) is essential to our development of a more complete understanding of the emission mechanisms...

Repeated X-ray Flaring Activity in Sagittarius A* (2005)

Belanger, Guillaume, Goldwurm, Andrea, Melia, Fulvio, Yusef-Zadeh, Farah, Ferrando, Philippe, Porquet, Delphine, ...

Investigating the spectral and temporal characteristics of the X-rays coming from Sagittarius A* (Sgr A*) is essential to our development of a more complete understanding of the emission mechanisms...

X-ray Emission from Orion Nebula Cluster Stars with Circumstellar Disks and Jets (2005)

Kastner, Joel H., Franz, Geoffrey, Grosso, Nicolas, Bally, John, McCaughrean, Mark J., Getman, Konstantin, ...

We investigate the X-ray and near-infrared emission properties of a sample of pre-main sequence (PMS) stellar systems in the Orion Nebula Cluster (ONC) that display evidence for circumstellar disks...

Global X-ray properties of the Orion Nebula region (2005)

Feigelson, Eric D., Getman, Konstantin, Townsley, Leisa, Garmire, Gordon, Preibisch, Thomas, Grosso, Nicolas, ...

Based on the Chandra Orion Ultradeep Project (COUP) observation, we establish the global X-ray properties of the stellar population associated with the Orion Nebula. Three components contribute...

X-ray emission from young brown dwarfs in the Orion Nebula Cluster (2005)

Preibisch, Thomas, McCaughrean, Mark J., Grosso, Nicolas, Feigelson, Eric D., Flaccomio, Ettore, Getman, Konstantin, ...

We use the sensitive X-ray data from the Chandra Orion Ultradeep Project (COUP) to study the X-ray properties of 34 spectroscopically-identified brown dwarfs with near-infrared spectral types between...

COUP census of X-ray stars in BN-KL and OMC-1S (2005)

Grosso, Nicolas, Feigelson, Eric, Getman, Konstantin, Townsley, Leisa, Broos, Patrick, Flaccomio, Ettore, ...

We present a study of the X-ray sources detected in the vicinity of two density peaks in the Orion Molecular Cloud 1 behind the Orion Nebula Cluster (ONC), as seen in the exceptionally deep (~10...

Repeated X-ray Flaring Activity in Sagittarius A* (2005)

Belanger, Guillaume, Goldwurm, Andrea, Melia, Fulvio, Yusef-Zadeh, Farah, Ferrando, Philippe, Porquet, Delphine, ...

Investigating the spectral and temporal characteristics of the X-rays coming from Sagittarius A* (Sgr A*) is essential to our development of a more complete understanding of the emission mechanisms...

COUP census of X-ray stars in BN-KL and OMC-1S (2005)

Grosso, Nicolas, Feigelson, Eric, Getman, Konstantin, Townsley, Leisa, Broos, Patrick, Flaccomio, Ettore, ...

We present a study of the X-ray sources detected in the vicinity of two density peaks in the Orion Molecular Cloud 1 behind the Orion Nebula Cluster (ONC), as seen in the exceptionally deep (~10...

Repeated X-ray Flaring Activity in Sagittarius A* (2005)

Belanger, Guillaume, Goldwurm, Andrea, Melia, Fulvio, Yusef-Zadeh, Farah, Ferrando, Philippe, Porquet, Delphine, ...

Investigating the spectral and temporal characteristics of the X-rays coming from Sagittarius A* (Sgr A*) is essential to our development of a more complete understanding of the emission mechanisms...

COUP census of X-ray stars in BN-KL and OMC-1S (2005)

Grosso, Nicolas, Feigelson, Eric, Getman, Konstantin, Townsley, Leisa, Broos, Patrick, Flaccomio, Ettore, ...

We present a study of the X-ray sources detected in the vicinity of two density peaks in the Orion Molecular Cloud 1 behind the Orion Nebula Cluster (ONC), as seen in the exceptionally deep (~10...

Repeated X-ray Flaring Activity in Sagittarius A* (2005)

Belanger, Guillaume, Goldwurm, Andrea, Melia, Fulvio, Yusef-Zadeh, Farah, Ferrando, Philippe, Porquet, Delphine, ...

Investigating the spectral and temporal characteristics of the X-rays coming from Sagittarius A* (Sgr A*) is essential to our development of a more complete understanding of the emission mechanisms...

Repeated X-ray Flaring Activity in Sagittarius A* (2005)

Belanger, Guillaume, Goldwurm, Andrea, Melia, Fulvio, Yusef-Zadeh, Farah, Ferrando, Philippe, Porquet, Delphine, ...

Investigating the spectral and temporal characteristics of the X-rays coming from Sagittarius A* (Sgr A*) is essential to our development of a more complete understanding of the emission mechanisms...

Determination of the gas-to-dust ratio in nearby dense clouds using X-ray absorption measurements (2003)

Vuong, MyHa, Montmerle, Thierry, Grosso, Nicolas, Feigelson, Eric, Verstraete, Laurent, Ozawa, Hideki

We present a comparison of the gas and dust properties of the dense interstellar matter in six nearby star-forming regions (d

Imaging and spectroscopy of DENIS-P J104814-395606 (2002)

Neuhaeuser, Ralph, Guenther, Eike, Alves, Joao, Grosso, Nicolas, Leinert, Christoph, Ratzka, Thorsten, ...

We obtained deep H- and K-band images of DENIS-P J104814-395606 using SofI and the speckle camera SHARP-I at the ESO-3.5m-NTT as well as QUIRC at the Mauna Kea 2.2m telescope between December 2000...

X-rays from Star-Forming Regions in the VLT Era (2001)

Montmerle, Thierry, Grosso, Nicolas

The association between star-forming regions and X-ray emission was discovered over 30 years ago. We now know that essentially all young stellar objects, T Tauri stars and protostars, are X-ray...

Discovery of new embedded Herbig-Haro objects in the rho Ophiuchi dark cloud (2001)

Grosso, Nicolas, Alves, Joao, Neuhaeuser, Ralph, Montmerle, Thierry

We report here the discovery of a 30"-chain of embedded Herbig-Haro (HH) objects in the rho Ophiuchi dark cloud. These HH objects were first detected during a deep K_S-band observation (completeness...

ROSAT-HRI detection of the Class I protostar YLW16A in the rho Ophiuchi dark cloud (2001)

Grosso, Nicolas

I analyze unpublished or partially published archival ROSAT data of the rho Ophiuchi dark cloud. This set of seven overlapping ROSAT HRI pointings, composed of eight ~one-hour exposures, detects...

X-rays and regions of star formation: a combined ROSAT-HRI/near-to-mid IR study of the rho Oph dark cloud (2000)

Grosso, Nicolas, Montmerle, Thierry, Bontemps, Sylvain, Andre, Philippe, Feigelson, Eric D.

We have obtained two deep exposures of the rho Oph cloud core region with the ROSAT HRI. The improved position accuracy (1"-6") with respect to previous recent X-ray observations (ROSAT PSPC, and...

Quasi-periodic X-ray Flares from the Protostar YLW15 (1999)

Tsuboi, Yohko, Imanishi, Kensuke, Koyama, Katsuji, Grosso, Nicolas, Montmerle, Thierry

With ASCA, we have detected three X-ray flares from the Class I protostar YLW15. The flares occurred every ~20 hours and showed an exponential decay with time constant 30-60 ks. The X-ray spectra are...

Rotation and X-ray emission from protostars (1999)

Montmerle, Thierry, Grosso, Nicolas, Tsuboi, Yohko, Koyama, Katsuji

The ASCA satellite has recently detected variable hard X-ray emission from two Class I protostars in the rho Oph cloud, YLW15 (IRS43) and WL6, with a characteristic time scale ~20h. In YLW15, the...